| Sonic the Hedgehog 2 (2022) Dr. Ivo Robotnik / Eggman |
| Sonic the Hedgehog (2020) Dr. Robotnik |
| Dark Crimes (2018) Tadek |
| Jim & Andy: The Great Beyond - Featuring a Very Special, Contractually Obligated Mention of Tony Clifton (2017) Himself |
| I Needed Color (2017) as Himself |
| The Bad Batch (2016) The Hermit |
| "That's Awesome!": The Story of 'Dumb and Dumber To' (2015) Self |
| Saturday Night Live: 40th Anniversary Special (2015) Self |
| Dumb and Dumber To (2014) Lloyd Christmas |
| And the Oscar Goes To... (2014) |
| Anchorman 2: The Legend Continues (2013) CBC News Anchor (uncredited) |
| The Improv: 50 Years Behind the Brick Wall (2013) |
| Kick-Ass 2 (2013) Sal Bertolinni / Colonel Stars and Stripes |
| The Incredible Burt Wonderstone (2013) Steve Gray |
| Nantucket Film Festival's Comedy Roundtable (2012) Panelist |
| Conan O'Brien Can't Stop (2011) Self |
| Mr. Popper's Penguins (2011) Tom Popper |
| A Christmas Carol (2009) Scrooge / Ghosts of Christmas (voice) |
| Under the Sea 3D (2009) |
| I Love You Phillip Morris (2009) Steven Russell |
| Yes Man (2008) Carl Allen |
| Horton Hears a Who! (2008) Horton (voice) |
| The Number 23 (2007) Walter Sparrow / Fingerling |
| Kings of Comedy USA (2006) Himself |
| Fun with Dick and Jane (2005) Dick Harper |
| Shadows of the Bat: The Cinematic Saga of the Dark Knight (2005) Himself |
| Lemony Snicket's A Series of Unfortunate Events (2004) Count Olaf / Dr. Stephano / Captain Sham |
| Stuck on You: It's Funny - The Farrelly Formula (2004) Himself |
| Eternal Sunshine of the Spotless Mind (2004) Joel Barish |
| The Work of Director Michel Gondry (2003) |
| Bruce Almighty (2003) Bruce Nolan |
| The Very Best America's Funniest Comedians (2003) |
| Pecan Pie (2003) The Driver |
| Saturday Night Live: The Best of Will Ferrell (2002) Steve (archive footage) |
| The Majestic (2001) Peter Appleton |
| The Concert for New York City (2001) Self |
| America: A Tribute to Heroes (2001) Himself |
| Laughing Out Loud: America's Funniest Comedians (2001) |
| How the Grinch Stole Christmas (2000) Grinch |
| Me, Myself & Irene (2000) Off. Charlie Baileygates/Hank Evans |
| Man on the Moon (1999) Andy Kaufman / Tony Clifton |
| George Martin: In My Life (1998) Himself |
| Simon Birch (1998) Adult Joe Wenteworth |
| The Truman Show (1998) Truman Burbank |
| TruTalk (1998) Truman Burbank |
| Liar Liar (1997) Fletcher Reede |
| The Cable Guy (1996) Cable Guy |
| Ace Ventura: When Nature Calls (1995) Ace Ventura |
| Riddle Me This: Why is Batman Forever? (1995) Himself |
| Batman Forever (1995) Edward Nygma / The Riddler |
| Dumb and Dumber (1994) Lloyd Christmas |
| The Mask (1994) Stanley Ipkiss / The Mask |
| Ace Ventura: Pet Detective (1994) Ace Ventura |
| A Tribute to Sam Kinison (1993) Himself |
| The Itsy Bitsy Spider (1992) The Exterminator (voice) |
| Doing Time on Maple Drive (1992) Tim Carter |
| High Strung (1991) Death (uncredited) |
| Jim Carrey: Unnatural Act (1991) Himself |
| Pink Cadillac (1989) Lounge Entertainer |
| Mike Hammer: Murder Takes All (1989) |
| Earth Girls Are Easy (1988) Wiploc |
| The Dead Pool (1988) Johnny Squares |
| Peggy Sue Got Married (1986) Walter Getz |
| Once Bitten (1985) Mark Kendall |
| Finders Keepers (1984) |
| All in Good Taste (1983) |
| Copper Mountain (1983) Bobby Todd |
| The Sex and Violence Family Hour (1983) |
| Rubberface (1981) Tony Moroni |
| Despicable Me 4 |
| Seuss Ted “Dr. Seuss” Geisel (rumored) |