Actor
- The Boat That Rocked (2009) .... The Count
- The Invention of Lying (2009) .... Bartender (uncredited)
- 81st Annual Academy Awards (2009) .... Himself - Nominee: Best Supporting Actor
- Synecdoche, New York (2009) .... Caden Cotard
- I Knew It Was You: Rediscovering John Cazale (2009) .... Himself
- Doubt (2008) .... Father Brendan Flynn
- Oscar, que empiece el espectáculo (2008) .... Himself / Truman Capote (archive footage)
- The Savages (2008) .... Jon Savage
- Charlie Wilson's War (2007) .... Gust Avrakotos
- The 17th Annual Gotham Awards (2007) .... Himself
- Before the Devil Knows You're Dead (2007) .... Andy Hanson
- Penélope, camino a los Oscar (2007) .... Himself (archive footage) (uncredited)
- Cómo conseguir un papel en Hollywood (2007) .... Himself (archive footage)
- HBO First Look Charlie Wilson's War (2007) .... Himself
- Strangers with Candy (2006) .... Henry
- Mission: Impossible III (2006) .... Owen Davian
- Capote (2006) .... Truman Capote
- Empire Falls (2005) .... Charlie Mayne
- Along Came Polly (2004) .... Sandy Lyle
- Film Trix 2004 (2004) .... Himself
- Cold Mountain (2003) .... Reverend Veasey
- A Journey to 'Cold Mountain' (2003) .... Himself
- Owning Mahowny (2003) .... Dan Mahowny
- Once Upon a Time in Utah, Sundance (2003) .... Himself
- Love Liza (2003) .... Wilson Joel
- Last Party 2000 (2003) .... Himself - Narrator
- 25th Hour (2003) .... Jacob Elinsky
- Punch-Drunk Love (2002) .... Dean Trumbell
- Red Dragon (2002) .... Freddy Lounds
- State and Main (2001) .... Joseph Turner White
- Almost Famous (2000) .... Lester Bangs
- Magnolia (2000) .... Phil Parma
- The Talented Mr. Ripley (1999) .... Freddie Miles
- Flawless (1999) .... Rusty
- Patch Adams (1998) .... Mitch Roman
- Happiness (1998) .... Allen
- Next Stop Wonderland (1998) .... Sean
- The Big Lebowski (1998) .... Brandt
- Culture (1998) .... Bill
- Montana (1998) .... Duncan
- Liberty! The American Revolution (1997) .... Joseph Plumb Martin (4 episodes, 1997)
- Sydney (1997) .... Young Craps Player (as Phillip Seymour Hoffman)
- Boogie Nights (1997) .... Scotty J.
- Twister (1996) .... Dustin Davis
- Nobody's Fool (1995) .... Officer Raymer
- The Fifteen Minute Hamlet (1995) .... Bernardo / Horatio / Laertes (as Philip S. Hoffman)
- When a Man Loves a Woman (1994) .... Gary
- The Yearling (1994) .... Buck
- The Getaway (1994) .... Frank Hansen (as Philip Hoffman)
- Money for Nothing (1993) .... Cochran (as Philip S. Hoffman)
- My Boyfriend's Back (1993) .... Chuck Bronski (as Philip Hoffman)
- Triple Bogey on a Par Five Hole (1993) .... Klutch (as Phil Hoffman)
- Joey Breaker (1993) .... Wiley McCall
- Scent of a Woman (1992) .... George Willis, Jr. (as Philip S. Hoffman)
- Leap of Faith (1992) .... Matt
- My New Gun (1992) .... Chris
- Szuler (1992) ....
- Capote (2006) .... executive producer
- Flat (2005) .... super special thanks


RockStar
SeanThom...