Tron 2.0 (2011) Kevin Flynn 
Men Who Stare at Goats (2009) Bill Django
Crazy Heart (2009) Bad Blake 
(
soundtrack)
The Open Road (2008) Kyle
Pablo (2008) Narrator
How to Lose Friends and Alienate People Clayton Harding (soundtrack)
Iron Man (2008) Obadiah Stane / Iron Monger 
The Cool School (2008) Narrator
Chasing the Lotus (2006) Narrator 
A Dog Year (2007) Jon Katz
Surf's Up (2007) The Geek 
(soundtrack)
Stick It (2005) Burt Vickerman (soundtrack)
Tideland (2005) Noah 
(soundtrack)
The
Moguls (aka The Amateurs) (2005) Andy Sargentee
Door
in the Floor (2004) Ted Cole 
(soundtrack)
Big
City Dick: Richard Peterson's First Movie (2004) Himself
Seabiscuit
(2003) Charles Howard 
(soundtrack)
Lewis
and Clark: Great Journey West
(2002) Narrator
Masked
and Anonymous
(2002) Tom Friend
(soundtrack)
\
Lost
In La Mancha
(2002) Narrator
Scenes
of the Crime (2001) Jimmy Berg
K-PAX
(2001) Mark Powell (soundtrack)
The
Contender (2000) Jackson Evans 
(soundtrack)
The
Muse (1999) Jack Warrick (soundtrack)
Simpatico
(1999) Lyle Carter
(soundtrack)
Arlington
Road (1999) Michael Faraday (soundtrack)
The
Big Lebowski (1998) The Dude 
(soundtrack)
The
Mirror Has Two Faces (1996) Gregory Larkin (soundtrack)
White
Squall (1996) Christopher "Skipper" Sheldon
(soundtrack)
Hidden
in America (1996) Vincent (also producer)
Wild
Bill (1995) James Butler "Wild Bill" Hickok
Blown
Away (1994) Jimmy Dove/Liam McGivney (soundtrack)
Fearless
(1993) Max Klein
The
Vanishing (1993) Barney
American
Heart (1992) Jack Kelson (also producer)
The
Fisher King (1991) Jack Lucas (soundtrack)
Picture
This - The Times of Peter Bogdanovich in Archer City, Texas (1991)
Texasville
(1990) Duane Jackson
The
Fabulous Baker Boys (1989) Jack Baker
(soundtrack)
Cold
Feet (1989) Bartender (uncredited) (soundtrack)
See
You in the Morning (1989) Larry Livingstone
Tucker
- The Man and His Dream (1988) Preston Tucker
Nadine
(1987) Vernon Hightower 
The
Morning After (1986) Turner Kendall
8 Million Ways to Die (1986) Scudder
Jagged
Edge (1985) Jack Forrester
Against All Odds (Special Edition) (1984) Terry Brogan
(soundtrack)
Starman
(1984) Starman (soundtrack)
Tron (1982) Kevin Flynn/Clu
(soundtrack)
Kiss
Me Goodbye (1982) Rupert Baines
The Last Unicorn (1982) Prince Lir (voice)
(soundtrack)
Faerie Tale Theatre - Rapunzel (1982)
Girls
In Their Summer Dresses (1981) 
Cutter's Way (1981) Richard Bone
Heaven's
Gate (1980) John L. Bridges 
(soundtrack)
The
American Success Company (aka Good as Gold) (1979) Harry
Winter
Kills (1979) Nick Kegan 
Somebody
Killed Her Husband (1978) Jerry Green
King
Kong (1976) Jack Prescott 
(soundtrack)
Stay Hungry (1976) Craig Blake
Hearts
of the West (1975) Lewis Tater 
Rancho Deluxe (1974) Jack McKee (soundtrack)
Thunderbolt
and Lightfoot (1974) Lightfoot 
Last American Hero (1973) Elroy Jackson, Jr.
Lolly
Madonna XXX (1973) Zack Feather 
The
Iceman Cometh (1973) Don Parritt
Fat
City (1972) Ernie 
Bad Company (1972) Jake Rumsey
The
Last Picture Show: Special Edition (1971) Duane Jackson 
(soundtrack)
Yin
& Yang of Mr. Go (1971) Nero Finnighan
Halls
of Anger (1970) Doug 
Silent Night, Lonely Night (1969) John Young
The
Company She Keeps (1950) Infant (uncredited) 