| Cruel, Usual, Necessary: The Passion of Silvio Narizzano (2024) as Himself |
| Evolutions: The Making of Phase IV (2024) as Self |
| The Man Who Tried to Feed the World (2020) as narrator |
| The Feud (2019) as Narrator |
| Rolling Thunder Revue: A Bob Dylan Story by Martin Scorsese (2019) as The Politician |
| The Circus (2018) as Narrator |
| Indian Horse (2018) as Father Quinney |
| Grand Coulee Dam (2017) as Narrator |
| The Race Underground (2017) as Narrator |
| The Battle Of Chosin (2016) as Narrator |
| Tesla (2016) as Narrator (voice) |
| Way Out on a Limb (2016) as Self |
| Way Out on a Limb (2016) |
| Close Encounters with Vilmos Zsigmond (2016) as Self |
| Space Men (2016) as Narrator |
| Murder of a President (2016) as Narrator |
| The Forgotten Plague (2015) as Himself - Narrator (voice) |
| Edison (2015) as Narrator (voice) |
| Fall (2014) as Father Sam Ryan |
| Altman (2014) as Self |
| They Came Together (2014) as Roger |
| Butch Cassidy and the Sundance Kid (2014) as Narrator |
| White House Down (2013) as Vice President Hammond |
| Silicon Valley (2013) as Narrator |
| Custer's Last Stand (2012) as Narrator (voice) |
| Billy the Kid (2012) as Narrator |
| Angle of Attack (2011) as Self - Narrator (voice) |
| Triangle Fire (2011) as narrator |
| The Greely Expedition (2011) as Narrator (voice) |
| Panama Canal (2011) as Narrator |
| Dinosaur Wars (2011) as Narrator |
| Robert E. Lee (2011) as Narrator |
| The Trotsky (2010) as Frank McGovern |
| Wyatt Earp (2010) as Narrator |
| According to Greta (2009) as Joseph |
| Depression: Out of the Shadows (2008) as Himself - Narrator |
| Kit Carson (2008) as Self - Narrator (voice) |
| Away from Her (2007) as Aubrey |
| The Wind in the Willows (2006) as Judge |
| X-Men: The Last Stand (2006) as Warren Worthington II |
| Playing House (2006) as Hubbard |
| Jesse James (2006) as Narrator (voice) |
| Las Vegas: An Unconventional History: Part 2 - American Mecca (2005) as Narrator |
| Las Vegas: An Unconventional History: Part 1 - Sin City (2005) as Narrator |
| Mayday (2005) as Captain Randall Williams |
| Heights (2005) as Jesse |
| What’s Happened Since ‘88 (2004) as Self |
| On the Set: Alex’s Loft (2004) as Self |
| On the Set: Loews Theater (2004) as Self |
| H2O (2004) as U.S. Ambassador Conrad |
| Silver City (2004) as Senator Judson Pilager |
| Childstar (2004) as Reed Harrison |
| Tricks (2004) as Arthur |
| The Rise & Fall of Penn Station (2004) as Narrator |
| Footsteps (2003) as Robbie |
| The Transcontinental Railroad (2003) as Narrator (voice) |
| Live from Baghdad (2002) as Tom Johnson |
| The Day Reagan Was Shot (2001) as Michael Deaver |
| Tart (2001) as Mike Storm |
| The Art of War (2000) as Politician (uncredited) |
| Enlisted: The Story of 'M*A*S*H' (2000) as Self |
| Altman on His Own Terms (2000) as Self |
| Magnolia (1999) as Alan Kligman, Esq. |
| Indiscretion of an American Wife (1998) as Russell Burton |
| Norma Jean, Jack, and Me (1998) as John F. Kennedy |
| Sleeping Dogs Lie (1998) as Edgar Trott |
| Breaking the Surface: The Greg Louganis Story (1997) as Pete Louganis |
| Private Parts (1997) as Roger Erlick |
| Kansas City (1996) as Henry Stilton |
| Special Report: Journey to Mars (1996) as Dean Rumplemeyer |
| The Ultimate Lie (1996) as Malcolm McGrath |
| Truman (1995) as Dinner Speaker (uncredited) |
| The First 100 Years: A Celebration of American Movies (1995) as Self |
| Bad Company (1995) as William V. 'Smitty' Smithfield (uncredited) |
| Clean Slate (1994) as Dr. Doover |
| Dead Ahead: The Exxon Valdez Disaster (1992) as Bill Reilly |
| Batman Returns (1992) as Mayor |
| Folks! (1992) as Ed |
| Tailspin: Behind the Korean Airliner Tragedy (1989) as Richard Burt |
| Shocker (1989) as Lt. Don Parker |
| The Caine Mutiny Court-Martial (1988) as Captain Blakely |
| Salvador (1986) as Ambassador Thomas Kelly |
| Mesmerized (1985) as Wilson |
| Countdown to Looking Glass (1984) as Bob Calhoun |
| Cloak & Dagger (1984) as Rice |
| Talk to Me (1984) as Ross |
| Hot Money (1983) as Burt / Tom |
| The Year of Living Dangerously (1982) as Pete Curtis |
| The Rules of Marriage (1982) as Alan Murray |
| Strange Behavior (1981) as John Brady |
| O Youth and Beauty! (1979) as Cash Bentley |
| Manhattan (1979) as Yale |
| The Class Of Miss MacMichael (1978) as Martin |
| The Great Bank Hoax (1978) as Reverend Everett Manigma |
| An Unmarried Woman (1978) as Martin Benton |
| The Front (1976) as Alfred Miller |
| Nashville (1975) as John Triplette |
| The Autobiography of Miss Jane Pittman (1974) as Quentin Lerner |
| Phase IV (1974) as James R. Lesko |
| I Love You...Good-bye (1974) as Alec Shield |
| The Thief Who Came to Dinner (1973) as Ted |
| The Crooked Hearts (1972) as Frank Adamic |
| What's Up, Doc? (1972) as Mr. Smith |
| Brewster McCloud (1971) as Shaft |
| McCabe & Mrs. Miller (1971) as Eugene Sears |
| Count Yorga, Vampire (1970) as Paul |
| The Lawyer (1970) as Intern in Legal Office (uncredited) |
| M*A*S*H (1970) as 'Me Lai' Marston |
| The Arrangement (1969) as Father Draddy |
| That Cold Day in the Park (1969) as The Rounder |
| The Legend of Lylah Clare (1968) as Mark Peter Sheean |
| Countdown (1967) as Rick |
| Double Trouble (1967) as Morley |