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Show Business Is My Life, But I Can't Prove It

Available for



Available for screenings until

Dec 01, 2025

Available for screenings in


About the film

Gary Mule Deer is a comedy legend whose contributions to the world of entertainment have left an indelible mark. With a career spanning decades, he has delighted audiences with his unique brand of humor and storytelling. "Show Business is My Life, But I Can't Prove It" provides an intimate look at his life, journey, and the impact he has had on comedy and entertainment as a whole. The film features heavy hitters in comedy and entertainment: Steve Martin, David Letterman, Jay Leno, Conan O'Brien, Vince Gill, Alice Cooper, and more. ".. The film is an inspiration to young comics everywhere." - Jay Leno.




1h 36m




G.B. Shannon


Heather Wilk


Steve Martin, Gary Mule Deer, David Letterman, Conan O'Brien, Alice Cooper, Jay Leno, Johnny Mathis

Awards & recognition

Oxford Film Festival

Best Documentary

Indie Memphis

Audience Award

Nashville Film Festival

Official Selection

Lone Star Film Festival

Official Selection

Austin Film Festival

Official Selection

Crystal Palace Film Festival

Official Selection

Melbourne Documentary International Film Festival

Official Selection

What people are saying

A bevy of well-known comedians is also on hand to provide their memories of the now sage-like Miller and his unique humor. Conan O’Brien, David Letterman, Steve Martin, Jay Leno, and more all share their appreciation of the man.

Calan Panchoo

Film Threat

Kudos from Leno, Letterman, and More

David Seely

Dallas Innovates

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