

Rebel Without a Cause: Defiant Innocents(2005)
Himself (uncredited)

Los Angeles Plays Itself(2004)
John 'Plato' Crawford in Rebel Without A Cause (archive footage)

Murderers, Mobsters, & Madmen: Volume 6: Hollywood Police Files(1992)

Death In Hollywood(1990)

Hollywood Scandals and Tragedies(1988)

Natalie - A Tribute to a Very Special Lady(1982)

Sonic Boom(1974)
Subject

Such Dust as Dreams Are Made On(1973)
Walter Scheerer

Big John Morrison(1973)
Stippy

The Family Rico(1972)
Nick Rico

Escape from the Planet of the Apes(1971)
Dr. Milo

In Search of America(1971)
Nick

How to Steal an Airplane(1971)
Luis Ortega

The Challengers(1970)
Angel de Angelo

80 Steps to Jonah(1969)
Jerry Taggart

Krakatoa, East of Java(1969)
Leoncavallo Borghese

Fortune and Men's Eyes(1969)

LSD: Insight or Insanity?(1967)
Narrator (voice)

Stranger on the Run(1967)
George Blaylock

The Dangerous Days of Kiowa Jones(1966)
Bobby Jack Wilkes

The Greatest Story Ever Told(1965)
Uriah

Who Killed Teddy Bear?(1965)
Lawrence Sherman

Cheyenne Autumn(1964)
Red Shirt

The Longest Day(1962)
Pvt. Martini

Escape from Zahrain(1962)
Ahmed

Exodus(1960)
Dov Landau

The Gene Krupa Story(1959)
Gene Krupa

A Private's Affair(1959)
Luigi J. Maresi

Tonka(1958)
White Bull

Aladdin(1958)
Aladdin

The Young Don't Cry(1957)
Leslie Henderson

Dino(1957)
Dino Minetta

Giant(1956)
Angel Obregón II

Somebody Up There Likes Me(1956)
Romolo

Crime in the Streets(1956)
Angelo 'Baby' Gioia

Rock, Pretty Baby(1956)
Angelo Barrato
The Dream(1956)
Charles Monet

Rebel Without a Cause(1955)
John 'Plato' Crawford

Six Bridges to Cross(1955)
Jerry - as a boy

The Private War of Major Benson(1955)
Cadet Col. Sylvester Dusik

Rock 'n' Roll Revue(1955)
Sal Mineo