| Mystery Cuddlers (2024) |
| The Christmas Letter (2024) Frederick |
| Brian Posehn: Posehna Non Grata (2022) Himself |
| Reno 911!: The Hunt for QAnon (2021) QAnon Cruise Passenger |
| Triumph: Rock & Roll Machine (2021) Self |
| Monty Python's Best Bits Celebrated (2021) Self |
| The Last Blockbuster (2020) Self |
| Mr. Bungle: The Night They Came Home (2020) Audience |
| Seven Stages to Achieve Eternal Bliss (2020) Cultist |
| Murder in the Front Row: The San Francisco Bay Area Thrash Metal Story (2019) Self - Narrator |
| Captain Underpants: The First Epic Movie (2017) Mr. Rected (voice) |
| Posehn 25x2 (2017) Himself |
| Brian Posehn: Criminally Posehn (2016) Himself |
| Uncle Nick (2015) Uncle Nick |
| Hell & Back (2015) Cleb (voice) |
| Chronic-Con, Episode 420: A New Dope (2015) Self |
| Brian Posehn: The Fartist (2013) Himself |
| Knights of Badassdom (2013) Gilberto |
| The Five-Year Engagement (2012) Tarquin |
| Lloyd the Conqueror (2011) Andy |
| Scooby-Doo! Abracadabra-Doo (2010) Marlon Whirlen (voice) |
| The Haunted World of El Superbeasto (2009) Murray (voice) |
| Funny People: Live (2009) Self |
| Sex Drive (2008) Carney |
| Comedy Central Roast of Bob Saget (2008) Self |
| Spy School (2008) Grissom |
| History of the Joke (2008) Self |
| Smiley Face (2007) Bus Driver |
| Super High Me (2007) Self |
| The Comedians of Comedy: Live at The Troubadour (2007) Self |
| Fantastic Four: Rise of the Silver Surfer (2007) Priest |
| Surf's Up (2007) Glen Maverick (voice) |
| Careless (2007) Officer Fred |
| Re-Animated (2006) Crocco (voice) |
| Sleeping Dogs Lie (2006) Randy |
| The Comedians of Comedy: Live at the El Rey (2006) Self |
| 30 Days in Hell: The Making of 'The Devil's Rejects' (2005) Self |
| The Devil's Rejects (2005) Jimmy |
| Cake Boy (2005) Darrel |
| The Comedians of Comedy (2005) Self |
| Sarah Silverman: Jesus Is Magic (2005) Friend |
| Eulogy (2004) Video Store Clerk |
| Grind (2003) Orville the Scraggly Guy |
| Dumb and Dumberer: When Harry Met Lloyd (2003) Store Clerk |
| Sorority Boys (2002) Haggard Alum |
| Run Ronnie Run (2002) Tank |
| Desperate But Not Serious (2000) Auteur #2 |
| Mission Hill (1999) Jim kuback |
| The Wedding Singer (1998) Man at Table #9 (uncredited) |
| Bobcat Goldthwait Comedy Central "Pulp Comics" (1996) |
| The Second Coming of John Cooper Self |