Exhibit 8.1

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MARTIN LIPTON

HERBERT M. WACHTELL

EDWARD D. HERLIHY

DANIEL A. NEFF

STEVEN A. ROSENBLUM

SCOTT K. CHARLES

JODI J. SCHWARTZ

ADAM O. EMMERICH

RALPH M. LEVENE

ROBIN PANOVKA

DAVID A. KATZ

ILENE KNABLE GOTTS

ANDREW J. NUSSBAUM

RACHELLE SILVERBERG

STEVEN A. COHEN

DEBORAH L. PAUL

DAVID C. KARP

RICHARD K. KIM

JOSHUA R. CAMMAKER

MARK GORDON

JEANNEMARIE OBRIEN

STEPHEN R. DiPRIMA

NICHOLAS G. DEMMO

IGOR KIRMAN

JONATHAN M. MOSES

T. EIKO STANGE

WILLIAM SAVITT

GREGORY E. OSTLING

DAVID B. ANDERS

ADAM J. SHAPIRO

NELSON O. FITTS

JOSHUA M. HOLMES

DAMIAN G. DIDDEN

IAN BOCZKO

MATTHEW M. GUEST

DAVID E. KAHAN

DAVID K. LAM

BENJAMIN M. ROTH

JOSHUA A. FELTMAN

ELAINE P. GOLIN

EMIL A. KLEINHAUS

KARESSA L. CAIN

51 WEST 52ND STREET

NEW YORK, N.Y. 10019-6150

TELEPHONE: (212) 403-1000

FACSIMILE: (212) 403-2000

RONALD C. CHEN

BRADLEY R. WILSON

GRAHAM W. MELI

GREGORY E. PESSIN

CARRIE M. REILLY

MARK F. VEBLEN

SARAH K. EDDY

VICTOR GOLDFELD

RANDALL W. JACKSON

BRANDON C. PRICE

KEVIN S. SCHWARTZ

MICHAEL S. BENN

ALISON Z. PREISS

TIJANA J. DVORNIC

JENNA E. LEVINE

RYAN A. McLEOD

ANITHA REDDY

JOHN L. ROBINSON

STEVEN WINTER

EMILY D. JOHNSON

JACOB A. KLING

RAAJ S. NARAYAN

VIKTOR SAPEZHNIKOV

MICHAEL J. SCHOBEL

ELINA TETELBAUM

ERICA E. AHO

LAUREN M. KOFKE

ZACHARY S. PODOLSKY

RACHEL B. REISBERG

MARK A. STAGLIANO

CYNTHIA FERNANDEZ LUMERMANN

CHRISTINA C. MA

NOAH B. YAVITZ

BENJAMIN S. ARFA

NATHANIEL D. CULLERTON

ERIC M. FEINSTEIN

ADAM L. GOODMAN

STEVEN R. GREEN

MENG LU


GEORGE A. KATZ (1965–1989)

JAMES H. FOGELSON (1967–1991)

LEONARD M. ROSEN (1965–2014)


OF COUNSEL

DAVID M. ADLERSTEIN

ANDREW R. BROWNSTEIN

WAYNE M. CARLIN

BEN M. GERMANA

SELWYN B. GOLDBERG

PETER C. HEIN

JB KELLY

JOSEPH D. LARSON

RICHARD G. MASON

PHILIP MINDLIN

THEODORE N. MIRVIS

DAVID S. NEILL

TREVOR S. NORWITZ

ERIC S. ROBINSON

ERIC M. ROSOF

JOHN F. SAVARESE

MICHAEL J. SEGAL

WON S. SHIN

DAVID M. SILK

ELLIOTT V. STEIN

LEO E. STRINE, JR.*

PAUL VIZCARRONDO, JR.

JEFFREY M. WINTNER

AMY R. WOLF

MARC WOLINSKY

* ADMITTED IN DELAWARE


COUNSEL

SUMITA AHUJA

LOREN BRASWELL

HEATHER D. CASTEEL

FRANCO CASTELLI

ANDREW J.H. CHEUNG

PAMELA EHRENKRANZ

ALINE R. FLODR

KATHRYN GETTLES-ATWA

LEDINA GOCAJ

ADAM M. GOGOLAK

ANGELA K. HERRING

MICHAEL W. HOLT

DONGHWA KIM

MARK A. KOENIG

J. AUSTIN LYONS

ALEXANDER S. MACKLER

ALICIA C. McCARTHY

JUSTIN R. ORR

NEIL M. SNYDER

JEFFREY A. WATIKER

June [   ], 2025

Southport Acquisition Corporation

268 Post Road, Suite 200

Fairfield, Connecticut 06824

Ladies and Gentlemen:

We have acted as counsel to Southport Acquisition Corporation (“Acquiror”), in connection with the proposed merger (the “Merger”) of Sigma Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Acquiror (“Merger Sub”), with and into Angel Studios, Inc., a Delaware corporation (the “Company”), pursuant to the Agreement and Plan of Merger, dated as of September 11, 2024, by and among Acquiror, Merger Sub and the Company (the “Agreement”). Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Agreement or the Registration Statement (as defined below). At your request, and in connection with the effectiveness of the Form S-4 (including the joint


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proxy statement/prospectus contained therein, as amended or supplemented through the date hereof, the “Registration Statement”), we are rendering our opinion concerning certain United States federal income tax matters.

In providing our opinion, we have examined the Agreement, the Registration Statement and such other documents, records and papers as we have deemed necessary or appropriate in order to give the opinion set forth herein. In addition, we have assumed that: (i) the transaction will be consummated in accordance with the provisions of the Agreement and as described in the Registration Statement (and no covenants or conditions described therein and affecting this opinion will be waived or modified), (ii) the Agreement, the Registration Statement, and the statements concerning the transaction and the parties thereto set forth in the Agreement and the Registration Statement, in each case, are true, complete and correct and will remain true, complete and correct at all times up to and including the Effective Time, (iii) all such statements qualified by knowledge, belief or materiality or comparable qualification are and will be true, complete and correct as if made without such qualification, (iv) all documents submitted to us as originals are authentic, all documents submitted to us as copies conform to the originals, all relevant documents have been or will be duly executed in the form presented to us and all natural persons who have executed such documents are of legal capacity, (v) all applicable reporting requirements have been or will be satisfied and (vi) Acquiror, the Company and their respective subsidiaries will treat the Merger for United States federal income tax purposes in a manner consistent with the opinion set forth below. If any of the above described assumptions is untrue for any reason, or if the transaction is consummated in a manner that is different from the manner described in the Agreement and the Registration Statement, our opinion as expressed below may be adversely affected.

Based upon and subject to the foregoing and the exceptions, limitations and qualifications described in the Registration Statement, we are of the opinion that under currently applicable United States federal income tax law, the discussion in the section of the Registration Statement entitled “U.S. FEDERAL INCOME TAX CONSIDERATIONS—U.S. Federal Income Tax Considerations of the Business Combination for holders of ASI Common Stock” constitutes our opinion as to the material U.S. federal income tax consequences of the Merger to holders of ASI Common Stock.

We express no opinion on any issue or matter relating to the tax consequences of the transactions contemplated by the Agreement or the Registration Statement other than the opinion set forth above. Our opinion is based on current provisions of the Internal Revenue Code of 1986, as amended, Treasury Regulations promulgated thereunder, published pronouncements of the Internal Revenue Service and case law, any of which may be changed at any time with retroactive effect. Any change in applicable laws or the facts and circumstances surrounding the transaction, or any inaccuracy in the statements, facts, or assumptions upon which we have relied, may affect the continuing validity of our opinion as set forth herein. We assume no responsibility to inform Acquiror or the Company of any such change or inaccuracy that may occur or come to our attention.


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We are furnishing this opinion solely in connection with the filing of the Registration Statement. We hereby consent to the filing of this opinion with the Securities and Exchange Commission as an exhibit to the Registration Statement, and to the references therein to us. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended.

Very truly yours,