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1969 as "Ralph Carr"
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A Century of Cinema as "Himself"
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A Guide to Recognizing Your Saints (Movie Producer)
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A Guide to Recognizing Your Saints as "Dito"
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A Scanner Darkly as "James Barris"
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Air America as "Billy Covington"
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Baby It's You as "Stewart"
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Back to School as "Derek"
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Black and White as "Terry Donager"
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Bowfinger as "Jerry Renfro"
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Chances Are as "Alex Finch"
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Chaplin as "Charles Spencer Chaplin"
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Chaplin Anniversary Edition: Chaplin the Hero as "Charles Spencer Chaplin"
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Chaplin Anniversary Edition: Strolling Into the Sunset as "Charles Spencer Chaplin"
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Chaplin Anniversary Edition: The Most Famous Man in the World! as "Charles Spencer Chaplin"
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Charlie Bartlett as "Principal Nathan Gardner"
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Charlie: The Life and Art of Charles Chaplin as "Himself"
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Cowboys and Aliens as "Zeke Jackson"
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Danger Zone as "Jim Scott"
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Eros as "Nick Penrose (segment "Equilibrium")"
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Firstborn as "Lee"
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Friends & Lovers as "Hans"
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Fur: An Imaginary Portrait of Diane Arbus as "Lionel Sweeney"
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Game 6 as "Steven Schwimmer"
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Good Night, and Good Luck. as "Joe Wershba"
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Gothika as "Pete Graham"
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Hail Caesar as "Jerry"
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Heart and Souls as "Thomas Reilly"
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Home for the Holidays as "Tommy Larson"
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Hubert Selby Jr: It/ll Be Better Tomorrow as "Narrator"
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Hugo Pool as "Franz Mazur"
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In Dreams as "Vivian Thompson"
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Iron Man as "Tony Stark"
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Iron Man 2 as "Tony Stark/Iron Man"
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Iron Man 3 as "Tony Stark - Iron Man"
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Johnny Be Good as "Leo Wiggins"
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Kiss Kiss Bang Bang as "Harry Lockhart"
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Last Party 2000 as "Himself"
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Less Than Zero as "Julian Wells"
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Lethargy as "Animal Therapist"
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Luck, Trust & Ketchup: Robert Altman in Carver Country as "Himself"
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Lucky You as "Telephone Jack"
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Natural Born Killers as "Wayne Gale"
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One Night Stand as "Charlie"
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Only You as "Peter"
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Oobermind as "null (voice)"
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Rented Lips as "Wolf Dangler"
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Restoration as "Robert Merivel"
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Richard III as "Lord Rivers"
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Sherlock Holmes as "Sherlock Holmes"
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Short Cuts as "Bill Bush"
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Soapdish as "David Seton Barnes"
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That's Adequate as "Albert Einstein"
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The Avengers as "Tony Stark/Iron Man"
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The Gingerbread Man as "Clyde Pell"
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The Last Party (Movie Writer)
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The Last Party as "Himself"
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The Outsider as "Himself"
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The Shaggy Dog as "Dr. Kozak"
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The Singing Detective as "Dan Dark"
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The Soloist as "Steve Lopez"
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Too Much Sun as "Reed Richmond"
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Tropic Thunder as "Kirk Lazarus"
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Tropic Thunder: Rain of Madness as "Kirk Lazarus"
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True Believer as "Roger Baron"
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Two Girls and a Guy as "Blake Allen"
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U.S. Marshals as "Special Agent John Royce"
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Wonder Boys as "Terry Crabtree"
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Zodiac as "Paul Avery"