Actor (44 credits)
- Thank You, Del: The Story of the Del Close Marathon (2016) играет самого себя
- The 21st Annual Screen Actors Guild Awards (2015) играет самого себя - в память, хроника
- National Lampoon: Drunk Stoned Brilliant Dead (2015) играет самого себя / Film Director, хроника
- The Oscars (2014) играет самого себя - режиссер / Writer / Actor (In Memoriam), хроника
- The 66th Primetime Emmy Awards (2014) играет самого себя - в память, хроника
- Slimer Mode (2009)
- Year One (2009) Adam
- Zombieland (2009) Egon Spengler, хроника, not listed in credits
- Knocked Up (2007) Ben's Dad
- The American Flag: Two Centuries of Concord & Conflict (2007) играет самого себя
- Walk Hard: The Dewey Cox Story (2007)
- The Last Kiss (2006) Professor Bowler
- A Bedazzled Conversation with Harold Ramis (2006) играет самого себя
- American Storytellers (2003) играет самого себя
- I'm with Lucy (2002) Jack
- Orange County (2001) Don Durkett
- High Fidelity (2000) Rob's Dad (scenes deleted)
- Ghostbusters 1999 (1999) Dr. Egon Spengler
- Comedy Central Canned Ham (1998) играет самого себя
- Chicago Filmmakers on the Chicago River (1998) играет самого себя
- As Good as It Gets (1997) Dr. Bettes
- The Best of John Candy on SCTV (1996) Various Characters, хроника
- Love Affair (1994) Sheldon Blumenthal
- Airheads (1994) Chris Moore
- Groundhog Day (1993) Neurologist
- The Earth Day Special (1990)
- Ghostbusters II (1989) Dr. Egon Spengler
- Stealing Home (1988)
- The Best of SCTV (1988) Various Characters, хроника
- Baby Boom (1987) Steven Buchner
- Will Rogers: Look Back in Laughter (1987) играет самого себя
- Comic Relief (1986) Moe Green
- Siskel & Ebert & the Movies (1986) играет самого себя - гость ведущий
- Ghostbusters (1984) Dr. Egon Spengler
- Ray Parker Jr.: Ghostbusters (1984) Dr. Egon Spengler, not listed in credits
- National Lampoon's Vacation (1983) Car salesman
- Spacehunter: Adventures in the Forbidden Zone (1983) Voice on Intercom, voice acting, not listed in credits
- Stripes (1981) Russell
- In the Research of Path of Life (1981) Derek Bilodeau
- SCTV Network 90 (1981) Allan «Crazy Legs» Herschman
- Heavy Metal (1981) Zeke (segment 'So Beautiful and So Dangerous'), voice acting
- Second City TV (1976)
- The TVTV Show (1976) Various
- Playboy After Dark (1969) Various, not listed in credits
Director (12 credits)
Producer (14 credits)
Writer (28 credits)
