| 2027 | The Lord of the Rings: The Hunt for Gollum | Frodo Baggins | Film |
| 2026 | Ready or Not: Here I Come | The Lawyer | Film |
| 2026 | Among Us | Green (voice) | TV |
| 2025 | E.B. White's Charlotte's Web | Adult Wilbur (voice) | TV |
| 2025 | The Toxic Avenger Unrated | Fritz Garbinger, his Creepy Brother | Film |
| 2025 | The Monkey | Ted | Film |
| 2024 | Bookworm | Strawn Wise | Film |
| 2023 | The Elephant 6 Recording Co. | Self | Film |
| 2021 | No Man of God | Bill Hagmaier | Film |
| 2017 | I Don't Feel at Home in This World Anymore | Tony | Film |
| 2016 | The Trust | David Waters | Film |
| 2016 | Dirk Gently's Holistic Detective Agency | Todd Brotzman | TV |
| 2014 | Open Windows | Nick Chambers | Film |
| 2014 | Over the Garden Wall | Wirt (voice) | TV |
| 2013 | A Band Called Death | Self | Film |
| 2013 | Pawn Shop Chronicles | Johnny Shaw | Film |
| 2013 | Grand Piano | Tom Selznick | Film |
| 2012 | TRON: Uprising | Beck | TV |
| 2012 | The Hobbit: An Unexpected Journey | Frodo Baggins | Film |
| 2012 | Celeste & Jesse Forever | Scott | Film |
| 2012 | Revenge for Jolly! | Thomas | Film |
| 2012 | Maniac | Frank Zito | Film |
| 2011 | Fight for Your Right Revisited | Ad-Rock (B-Boys 1) | Film |
| 2011 | Nightmare Factory | Self | Film |
| 2011 | Happy Feet Two | Mumble (voice) | Film |
| 2010 | The Romantics | Chip | Film |
| 2010 | The Heart is a Drum Machine | Self | Film |
| 2009 | Beyond All Boundaries | Corp. Wilfred Hanson / Capt. John C. Chapin | Film |
| 2009 | 9 | #9 (voice) | Film |
| 2008 | The Oxford Murders | Martin | Film |
| 2008 | Operation Filmmaker | Self | Film |
| 2007 | Day Zero | Aaron Feller | Film |
| 2006 | Bobby | William Avary | Film |
| 2006 | Happy Feet | Mumble (voice) | Film |
| 2005 | Ringers: Lord of the Fans | Self | Film |
| 2005 | Sin City | Kevin | Film |
| 2005 | Everything Is Illuminated | Jonathan Safran Foer | Film |
| 2005 | Green Street Hooligans | Matt Buckner | Film |
| 2004 | Frodo Is Great... Who Is That?!! | Self | Film |
| 2004 | Eternal Sunshine of the Spotless Mind | Patrick | Film |
| 2003 | The Adventures of Tom Thumb and Thumbelina | Tom Thumb (voice) | Film |
| 2003 | The Lord of the Rings: The Return of the King | Frodo | Film |
| 2003 | Spy Kids 3-D: Game Over | The Guy | Film |
| 2003 | Beyond the Movie: The Return of the King | Self | Film |
| 2002 | The Lord of the Rings - The Appendices Part 2: From Vision to Reality | Self | Film |
| 2002 | The Lord of the Rings - The Appendices Part 1: From Book to Vision | Self | Film |
| 2002 | The Fellowship of the Ring: The Road Goes Ever On.. | Self | Film |
| 2002 | The Fellowship of the Ring: From Book to Script | Self | Film |
| 2002 | The Fellowship of the Ring: Visualizing the Story | Self | Film |
| 2002 | The Fellowship of the Ring: The Fellowship of the Cast | Self | Film |
| 2002 | A Day in the Life of a Hobbit | Self | Film |
| 2002 | The Fellowship of the Ring: Cameras in Middle-earth | Self | Film |
| 2002 | The Fellowship of the Ring: Scale | Self | Film |
| 2002 | The Soundscapes of Middle-earth | Self | Film |
| 2002 | Try Seventeen | Jones | Film |
| 2002 | Ash Wednesday | Sean Sullivan | Film |
| 2002 | The Cranberries - Stars: The Best Videos 1992-2002 | Boy with Hearphones (segment "Ridiculous Thoughts") | Film |
| 2002 | The Lord of the Rings: The Two Towers | Frodo | Film |
| 2002 | The Fellowship of the Ring: Designing and Building Middle-earth + Weta Workshop + Costume Design | Self | Film |
| 2001 | Passage to Middle-Earth: The Making of 'The Lord of the Rings' | Self | Film |
| 2001 | Chain of Fools | Mikey | Film |
| 2001 | The Lord of the Rings: The Fellowship of the Ring | Frodo | Film |
| 2001 | Beyond the Movie: The Fellowship of the Ring | Self | Film |
| 2000 | The Bumblebee Flies Anyway | Barney Snow | Film |
| 1999 | Black and White | Wren | Film |
| 1998 | Deep Impact | Leo Biederman | Film |
| 1998 | The Faculty | Casey Connor | Film |
| 1997 | Oliver Twist | The Artful Dodger | Film |
| 1997 | The Ice Storm | Mikey Carver | Film |
| 1996 | Flipper | Sandy Ricks | Film |
| 1994 | North | North | Film |
| 1994 | The War | Stu Simmons | Film |
| 1993 | The Good Son | Mark Evans | Film |
| 1993 | The Adventures of Huck Finn | Huck Finn | Film |
| 1992 | Radio Flyer | Mike | Film |
| 1992 | The Witness | Little Boy | Film |
| 1992 | Forever Young | Nat Cooper | Film |
| 1991 | Paradise | Willard Young | Film |
| 1990 | Avalon | Michael Kaye | Film |
| 1990 | Internal Affairs | Sean Stretch | Film |