| 2005 | Bobby (anounced) | |
| 2006 | Happy Feet (voice) (filming) | Mumble |
| 2005 | Everything Is Illuminated
| Jonathan |
| 2005 | Sin City | Kevin |
| 2005/I | Hooligans
...aka: Green Street
...aka: Green Street Hooligans
| Matt Buckman |
| 2004 | Eternal Sunshine of the Spotless Mind | Patrick |
| 2003 | The Lord of the Rings: The Return of the King | Frodo Baggins |
| 2003/II | The Lord of the Rings: The Return of the King (VG) (voice) | Frodo Baggins |
| 2003 | Spy Kids 3-D: Game Over | The Guy |
| 2002 | The Lord of the Rings: The Two Towers | Frodo Baggins |
| 2002 | The Cranberries: The Best Videos 1992-2002 (V) |
|
| 2002 | The Lord of the Rings: The Two Towers (VG) (voice) | Frodo Baggins |
| 2002 | Try Seventeen
...aka: All I Want
| Jones |
| 2002 | The Adventures of Tom Thumb & Thumbelina (V) (voice) | Tom Thumb |
| 2002 | Ash Wednesday | Sean Sullivan |
| 2001 | The Lord of the Rings: The Fellowship of the Ring | Frodo Baggins |
| 2000 | Chain of Fools | Mikey |
| 1999 | The Bumblebee Flies Anyway | Barney Snow |
| 1999 | Black and White | Wren |
| 1998 | The Faculty | Casey Connor |
| 1998 | Deep Impact | Leo Beiderman |
| 1997 | Oliver Twist (TV) | The Artful Dodger |
| 1997 | The Ice Storm | Mikey Carver |
| 1996 | Flipper | Sandy Ricks |
| 1995 | Cranberries: Ridiculous Thoughts (TV) (uncredited) | Boy with hearphones |
| 1994 | The War | Stuart 'Stu' Simmons |
| 1994 | North | North |
| 1993 | The Good Son | Mark Evans |
| 1993 | The Adventures of Huck Finn | Huck Finn |
| 1992 | Forever Young | Nat Cooper |
| 1992 | Day-O | Dayo |
| 1992 | Radio Flyer | Mike |
| 1992 | The Witness | Little Boy |
| 1991 | Paradise | Willard Young |
| 1990 | Avalon | Michael Kaye |
| 1990 | Child in the Night | Luke |
| 1990 | Internal Affairs | Sean |
| 1989 | Back to the Future Part II | Video Game Boy #1 |
