| 2021 | Ghostbusters: Legacy | Dr. Egon Spengler (archive footage) (uncredited) | ★ 7.3 |
| 2020 | Belushi | Self (archive footage) | ★ 6.9 |
| 2020 | Inside Ghostbusters | Self | ★ 6.8 |
| 2015 | Thank You, Del: The Story of the Del Close Marathon | Self | ★ 5.6 |
| 2015 | Drunk Stoned Brilliant Dead: The Story of the National Lampoon | Self - Actor / Director (archive footage) | ★ 6.6 |
| 2011 | Inside Story: National Lampoon's Vacation | Self | ★ 6.5 |
| 2009 | Caddyshack: The Inside Story | Himself | ★ 10.0 |
| 2009 | Year One - Aller Anfang ist schwer | Adam | ★ 5.0 |
| 2008 | Animal House: The Inside Story | Self | ★ 4.0 |
| 2007 | Walk Hard - Die Dewey Cox Story | L'Chaim | ★ 6.6 |
| 2007 | Students of 'The Graduate' | Self | ★ 0.0 |
| 2007 | Beim ersten Mal | Ben's Dad | ★ 6.3 |
| 2006 | Der letzte Kuss | Professor Bowler | ★ 6.0 |
| 2004 | Chicago Filmmakers on the Chicago River | Self | ★ 7.0 |
| 2002 | Alle lieben Lucy | Jack | ★ 5.4 |
| 2002 | Groundhog Day: The Weight of Time | Self | ★ 5.0 |
| 2002 | Nix wie raus aus Orange County | Don Durkett | ★ 6.0 |
| 1999 | Ghostbusters 1999 | Self | ★ 6.0 |
| 1999 | Caddyshack: The 19th Hole | Self - Director | ★ 7.8 |
| 1998 | The Yearbook: An Animal House Reunion | Self - Writer | ★ 7.0 |
| 1997 | Besser geht's nicht | Dr. Bettes | ★ 7.4 |
| 1994 | Perfect Love Affair | Sheldon Blumenthal | ★ 5.4 |
| 1994 | Airheads | Chris Moore | ★ 6.1 |
| 1993 | Und täglich grüßt das Murmeltier | Neurologist | ★ 7.6 |
| 1990 | The Earth Day Special | Elon Spengler | ★ 8.0 |
| 1989 | Ghostbusters II | Dr. Egon Spengler | ★ 6.6 |
| 1988 | The Best of SCTV | | ★ 6.0 |
| 1988 | Katies Sehnsucht | Alan Appleby | ★ 6.3 |
| 1987 | Baby Boom - Eine schöne Bescherung | Steven Buchner | ★ 6.4 |
| 1985 | Richard Lewis: I'm In Pain | Self | ★ 7.0 |
| 1984 | Ghostbusters - Die Geisterjäger | Egon Spengler | ★ 7.5 |
| 1983 | The Rodney Dangerfield Special: I Can't Take It No More | Self / Various | ★ 6.5 |
| 1983 | Die schrillen Vier auf Achse | Car salesman (voice) (uncredited) | ★ 7.1 |
| 1983 | Spacehunter - Jäger im All | Voice (Uncredited) | ★ 5.3 |
| 1981 | Heavy Metal | Zeke (voice) | ★ 6.5 |
| 1981 | Ich glaub' mich knutscht ein Elch! | Russell Ziskey | ★ 6.6 |
| Godspell 2025 | (archive footage) | ★ 0.0 |
