 | SEGAL (2025) as Self |
 | Kiss Kiss Fingerbang (2015) as Cat Owner |
 | Magician: The Astonishing Life and Work of Orson Welles (2014) as Self - Actor |
 | A Fuller Life (2013) as Self - Reader (segment "The Pursuit of Happiness") |
 | Mel Brooks: Make a Noise (2013) as Self |
 | Passion for Snow (2013) as Narrator |
 | Casting By (2012) as Self |
 | A Bird of the Air (2011) as Duncan Weber |
 | American Swing (2009) as Self |
 | It Came from Kuchar (2009) as Self |
 | Students of 'The Graduate' (2007) as Himself |
 | Cinemaville (2007) as Self |
 | Students of 'The Graduate' (2007) as Self |
 | The Last Shot (2004) as Lonnie Bosco |
 | Reel Radicals: The Sixties Revolution in Film (2002) as Self (uncredited) |
 | Serendipity (2001) as Customer at Bloomingdales (uncredited) |
 | Town & Country (2001) as Suttler |
 | The Directors: Milos Forman (2000) as Self |
 | Lisa Picard Is Famous (2000) as Buck Henry |
 | Psycho Path (1999) as Self |
 | Breakfast of Champions (1999) as Fred T. Barry |
 | Curtain Call (1998) as Charles Van Allsburg |
 | I'm Losing You (1998) as Phillip Dagrom |
 | The Real Blonde (1998) as Dr. Leuter |
 | Playboy: The Story of X (1998) as Self - Host |
 | 1999 (1997) as Mr. Goldman |
 | Shakespeare's Plan 12 from Outer Space (1996) as The Priest |
 | To Die For (1995) as Mr. H. Finlaysson |
 | Harrison Bergeron (1995) as TV Producer |
 | Shotgun Freeway: Drives Through Lost L.A. (1995) as self |
 | Even Cowgirls Get the Blues (1994) as Dr. Dreyfus |
 | Grumpy Old Men (1993) as Snyder |
 | Short Cuts (1993) as Gordon Johnson |
 | Mastergate (1992) as Clay Fielder |
 | Keep the Change (1992) as Smitty |
 | The Player (1992) as Buck Henry |
 | The Lounge People (1992) as Lewis Louis |
 | 'The Graduate' at 25 (1992) as Self |
 | The Graduate at 25 (1992) as Himself |
 | The Linguini Incident (1991) as Cecil |
 | Defending Your Life (1991) as Dick Stanley |
 | The Republic Pictures Story (1991) as Self |
 | Tune in Tomorrow... (1990) as Father Serafim |
 | Saturday Night Live: 15th Anniversary (1989) as Self |
 | Rude Awakening (1989) as Lloyd Stool |
 | Aria (1987) as Preston |
 | The Best of John Belushi (1985) as Various Characters |
 | Steve Martin Live! (1984) as Self |
 | Eating Raoul (1982) as Mr. Leech |
 | Strong Medicine (1981) |
 | First Family (1980) as Father Sandstone / TV Anchorman |
 | Gloria (1980) as Jack Dawn |
 | Playboy's 25th Anniversary Celebration (1979) as Self |
 | Old Boyfriends (1979) as Art Kopple |
 | Heaven Can Wait (1978) as The Escort |
 | The Absent-Minded Waiter (1977) as Bernie Cates |
 | The Man Who Fell to Earth (1976) as Oliver Farnsworth |
 | The Day of the Dolphin (1973) as Man Standing Outside Women's Club (uncredited) |
| | Is There Sex After Death? (1971) as Dr. Louise Manos |
 | Taking Off (1971) as Larry Tyne |
 | Nedostaje mi Sonja Henie (1971) as Doctor |
 | The Owl and the Pussycat (1970) as Man Looking Through Doubleday's Bookstore (uncredited) |
 | Catch-22 (1970) as Lt. Col. Korn |
 | Candy (1968) as Mental Patient (uncredited) |
 | The Secret War of Harry Frigg (1968) as Stockade Commandant |
 | The Graduate (1967) as Room Clerk |
 | The Troublemaker (1964) as T. R. Kingston |
 | Die Brücke (1959) as Voice of American Soldier |
 | Mary Woronov: Cult Queen as Self |
 | The Humbling Screenplay |
 | Get Smart Characters |
| | Town & Country Writer |
| | To Die For Screenplay |
 | Protocol Screenplay |
| | First Family Director |
| | First Family Writer |
 | The Nude Bomb Characters |
| | Heaven Can Wait Director |
| | The Day of the Dolphin Screenplay |
 | What's Up, Doc? Screenplay |
| | Nedostaje mi Sonja Henie Director |
| | Nedostaje mi Sonja Henie Writer |
| | The Owl and the Pussycat Screenplay |
| | Catch-22 Screenplay |
| | Candy Screenplay |
| | The Graduate Screenplay |
 | Get Smart: A Man Called Smart Writer |
| | The Troublemaker Screenplay |
| | The Troublemaker Original Story |
