Below is a list of feature films that Paul Rudd has starred in. They are listed in reverse-chronological order, with the most recent ones last. Click on the titles to read more about each project individually.
| 1993 | The Moment of Truth | Scott |
| 1994 | Runaway Daughters | Jimmy |
| 1995 | Clueless | Josh |
| 1995 | Halloween: The Curse of Michael Myers | Tommy Doyle |
| 1996 | Romeo + Juliet | Dave Paris |
| 1996 | The Size of Watermelons | Alex |
| 1997 | The Locusts | Earl |
| 1998 | Overnight Delivery | Wyatt Trips |
| 1998 | The Object of My Affection | George Hanson |
| 1999 | 200 Cigarettes | Kevin |
| 1999 | The Cider House Rules | Wally Worthington |
| 2000 | Gen-Y Cops | Ian Curtis |
| 2000 | The Great Gatsby | Nick Carraway |
| 2001 | Wet Hot American Summer | Andy |
| 2001 | Reaching Normal | Kenneth |
| 2001 | The Château | Graham Granville |
| 2003 | The Shape of Things | Adam Sorenson |
| 2003 | Two Days | Paul Miller |
| 2003 | House Hunting | Daniel |
| 2004 | Anchorman: The Legend of Ron Burgundy | Brian Fantana |
| 2004 | P.S. | Sammy Silverstein |
| 2004 | Wake Up, Ron Burgundy: The Lost Movie | Brian Fantana |
| 2005 | The Baxter | Dan Abbott |
| 2005 | The 40-Year-Old Virgin | David |
| 2005 | Tennis, Anyone…? | Lance Rockwood |
| 2006 | The Oh in Ohio | Jack Chase |
| 2006 | Diggers | Hunt |
| 2006 | Night at the Museum | Don |
| 2007 | Reno 911: Miami | Ethan |
| 2007 | I Could Never Be Your Woman | Adam Pearl |
| 2007 | The Ex | Leon |
| 2007 | Knocked Up | Pete |
| 2007 | The Ten | Jeff Reigert |
| 2007 | Walk Hard: The Dewey Cox Story | John Lennon |
| 2008 | Over Her Dead Body | Dr. Henry Mills |
| 2008 | Forgetting Sarah Marshall | Chuck |
| 2008 | Role Models | Danny Donahue |
| 2009 | I Love You, Man | Peter Klaven |
| 2009 | Monsters vs. Aliens | Derek (voice) |
| 2009 | Year One | Abel |
| 2010 | Dinner for Schmucks | Tim Conrad |
| 2010 | How Do You Know | George Madison |
| 2011 | Our Idiot Brother | Ned |
| 2012 | Wanderlust | George |
| 2012 | The Perks of Being a Wallflower | Bill Anderson |
| 2012 | This Is 40 | Pete |
| 2013 | Admission | John |
| 2013 | Prince Avalanche | Alvin |
| 2013 | This Is the End | Himself |
| 2013 | All Is Bright | Rene |
| 2013 | Anchorman 2: The Legend Continues | Brian Fantana |
| 2014 | They Came Together | Joel |
| 2015 | The Little Prince | Mr. Prince (voice) |
| 2015 | Ant-Man | Scott Lang / Ant-Man |
| 2016 | The Fundamentals of Caring | Ben |
| 2016 | Captain America: Civil War | Scott Lang / Ant-Man / Giant-Man |
| 2016 | Sausage Party | (voice) |
| 2016 | Nerdland | John |
| 2017 | Fun Mom Dinner | Brady |
| 2018 | The Catcher Was a Spy | Moe Berg |
| 2018 | Mute | Cactus Bill |
| 2018 | An Ideal Home | Paul |
| 2018 | Ant-Man and the Wasp | Scott Lang / Ant-Man |
| 2019 | Avengers: Endgame | Scott Lang / Ant-Man |
| 2019 | Between Two Ferns: The Movie | Himself |
| 2020 | Ghostbusters 2020 | – |