Actor
- Brando (2008) .... Himself (archive footage)
- How the West Was Lost (2008) .... Perce Howland (archive footage) (uncredited)
- Imaginary Witness: Hollywood and the Holocaust (2007) .... (archive footage)
- Fragiles et sublimes... Stars en clair obscur (2006) .... Himself (archive footage)
- Elizabeth Taylor: England's Other Elizabeth (2003) .... (archive footage)
- The Rat Pack (1999) .... Himself (archive footage)
- Great Romances of the 20th Century: Elizabeth Taylor and Richard Burton (1997) .... (archive footage)
- George Stevens: A Filmmaker's Journey (1985) .... Clip from 'A Place in the Sun' (archive footage)
- Montgomery Clift (1983) .... Himself (film clips and documentary footage)
- Sixty Years of Seduction (1981) .... (archive footage)
- America at the Movies (1977) .... 'Matt' Garth / George Eastman (archive footage)
- The Men Who Made the Movies: Howard Hawks (1973) .... Himself (archive footage) (uncredited)
- The Defector (1966) .... Prof. James Bower
- William Faulkner's Mississippi (1965) .... Narrator
- The Love Goddesses (1965) .... Himself (archive footage)
- Freud (1962) .... Sigmund Freud
- Judgment at Nuremberg (1961) .... Rudolph Petersen
- The Misfits (1961) .... Perce Howland
- Wild River (1960) .... Chuck Glover
- Suddenly, Last Summer (1959) .... Dr. Cukrowicz
- The Young Lions (1958) .... Noah Ackerman
- Lonelyhearts (1958) .... Adam White
- Raintree County (1957) .... John Wickliff Shawnessy
- Operation Raintree (1957) .... Himself (uncredited)
- Stazione Termini (1954) .... Giovanni Doria
- From Here to Eternity (1953) .... Pvt. Robert E. Lee 'Prew' Prewitt
- I Confess (1953) .... Fr. Michael William Logan
- A Place in the Sun (1951) .... George Eastman
- The Big Lift (1950) .... Sgt. 1st Class Danny MacCullough
- The Heiress (1949) .... Morris Townsend
- Red River (1948) .... Matthew 'Matt' Garth
- The Search (1948) .... Ralph 'Steve' Stevenson
- Hay Fever (1939) ....
- Judgment at Nuremberg (1961) .... uncredited
- The Search (1948) .... uncredited