<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0f8ea-91e1-7c5f-b95f-d1c92f7ccdf8,g:8c9251ba-39e2-4404-b133-a5e22cd9565a-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.starz.com/role/Cover" xlink:type="simple" xlink:href="starz-20261001.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.starz.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesTable_01a0f8ea-91e1-702f-a077-bdb12a6dd8bc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityAddressesTable_01a0f8ea-91e1-702f-a077-bdb12a6dd8bc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesAddressTypeAxis_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesAddressTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntityAddressesTable_01a0f8ea-91e1-702f-a077-bdb12a6dd8bc" xlink:to="loc_dei_EntityAddressesAddressTypeAxis_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e" xlink:to="loc_dei_AddressTypeDomain_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain_01a0f8ea-91e1-7823-a9ca-8222622fd21f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_01a0f8ea-91e1-7e57-b2a2-ca8da92eea9e" xlink:to="loc_dei_AddressTypeDomain_01a0f8ea-91e1-7823-a9ca-8222622fd21f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_OtherAddressMember_01a0f8ea-91e1-7b0d-a4e1-a6a8bb06e66e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_OtherAddressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_AddressTypeDomain_01a0f8ea-91e1-7823-a9ca-8222622fd21f" xlink:to="loc_dei_OtherAddressMember_01a0f8ea-91e1-7b0d-a4e1-a6a8bb06e66e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a0f8ea-91e1-7a2d-9ea1-f1e8342005cc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_DocumentType_01a0f8ea-91e1-7a2d-9ea1-f1e8342005cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a0f8ea-91e1-71cf-b53a-61706431eabe" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_DocumentPeriodEndDate_01a0f8ea-91e1-71cf-b53a-61706431eabe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a0f8ea-91e1-799a-a8ce-891bbf6377c0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityRegistrantName_01a0f8ea-91e1-799a-a8ce-891bbf6377c0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a0f8ea-91e1-738d-bab9-58f4762302da" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a0f8ea-91e1-738d-bab9-58f4762302da" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a0f8ea-91e1-766b-9608-5cd8badce088" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityFileNumber_01a0f8ea-91e1-766b-9608-5cd8badce088" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a0f8ea-91e1-730a-b16f-fa23984ac4f5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityAddressAddressLine1_01a0f8ea-91e1-730a-b16f-fa23984ac4f5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a0f8ea-91e1-7ebe-ab95-bc2e9ce3c810" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityAddressCityOrTown_01a0f8ea-91e1-7ebe-ab95-bc2e9ce3c810" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a0f8ea-91e1-7eb9-9c46-dd3145a71213" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityAddressStateOrProvince_01a0f8ea-91e1-7eb9-9c46-dd3145a71213" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a0f8ea-91e1-739e-98fc-c3063fa56bc6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityAddressPostalZipCode_01a0f8ea-91e1-739e-98fc-c3063fa56bc6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a0f8ea-91e1-78d7-b9ec-e610a7772455" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_CityAreaCode_01a0f8ea-91e1-78d7-b9ec-e610a7772455" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a0f8ea-91e1-783b-a653-6b6ddc490aa8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_LocalPhoneNumber_01a0f8ea-91e1-783b-a653-6b6ddc490aa8" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a0f8ea-91e1-7183-8a27-ce29a4bb851b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_WrittenCommunications_01a0f8ea-91e1-7183-8a27-ce29a4bb851b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a0f8ea-91e1-7a4e-92e8-55de424ad226" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_SolicitingMaterial_01a0f8ea-91e1-7a4e-92e8-55de424ad226" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a0f8ea-91e1-757b-8461-cdc0c956fd4a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_PreCommencementTenderOffer_01a0f8ea-91e1-757b-8461-cdc0c956fd4a" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a0f8ea-91e1-7ead-a84e-5226c4fdec5b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a0f8ea-91e1-7ead-a84e-5226c4fdec5b" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a0f8ea-91e1-7d12-9b55-d1901be1a820" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_Security12bTitle_01a0f8ea-91e1-7d12-9b55-d1901be1a820" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a0f8ea-91e1-7001-91cd-8306ddc388ca" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_TradingSymbol_01a0f8ea-91e1-7001-91cd-8306ddc388ca" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a0f8ea-91e1-7e36-a97c-6ce37be39a1a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_SecurityExchangeName_01a0f8ea-91e1-7e36-a97c-6ce37be39a1a" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a0f8ea-91e1-7c08-a628-aa57b7ced20a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a0f8ea-91e1-7c08-a628-aa57b7ced20a" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a0f8ea-91e1-72f0-878d-8d9577f43f33" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_AmendmentFlag_01a0f8ea-91e1-72f0-878d-8d9577f43f33" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a0f8ea-91e1-7cd7-9820-42f86777ff37" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_01a0f8ea-91e1-7887-9d9c-90a146fd4613" xlink:to="loc_dei_EntityCentralIndexKey_01a0f8ea-91e1-7cd7-9820-42f86777ff37" xlink:type="arc" order="20"/>
  </link:definitionLink>
</link:linkbase>
