| Year | Title | Role | Notes | Ref. |
| 1982 | Return of the Ewok | Himself / Wicket W. Warrick | Unreleased | |
| 1983 | Return of the Jedi | Wicket W. Warrick | | |
| 1984 | Caravan of Courage: An Ewok Adventure | Voiced by Darryl Henriques | |
| 1985 | Ewoks: The Battle for Endor | |
| 1986 | Labyrinth | Goblin Corps member | | |
| The Princess and the Dwarf | | | |
| 1988 | Willow | Willow Ufgood | | |
| 1993 | Leprechaun | Lubdan | | |
| 1994 | Leprechaun 2 | | |
| 1995 | Leprechaun 3 | | |
| 1996 | Leprechaun 4: In Space | | |
| 1997 | Prince Valiant | Pechet | | |
| 1998 | A Very Unlucky Leprechaun | Lucky | | |
| 1999 | Star Wars: Episode I – The Phantom Menace | Yoda (walk-in shots) / Weazel / Wald | | |
| The New Adventures of Pinocchio | Dwarf / Pepe the Cricket | | |
| The White Pony | Lucky | | |
| 2000 | The 10th Kingdom | Acorn the Dwarf | | |
| Leprechaun in the Hood | Lubdan | | |
| 2001 | Snow White: The Fairest of Them All | Saturday | | |
| Harry Potter and the Philosopher's Stone | Professor Filius Flitwick / Goblin Bank Teller / Griphook (voice) | | |
| 2002 | Harry Potter and the Chamber of Secrets | Professor Filius Flitwick | | |
| Al's Lads | Leo | | |
| 2003 | Leprechaun: Back 2 tha Hood | Lubdan | | |
| 2004 | Ray | Oberon | | |
| Harry Potter and the Prisoner of Azkaban | Choir Master | Choir Master appearance later reused for the rest of the series as a design for Professor Filius Flitwick- A separate character to Choir Master | |
| Skinned Deep | Plates | | |
| 2005 | The Hitchhiker's Guide to the Galaxy | Marvin the Paranoid Android | Voiced by Alan Rickman | |
| Harry Potter and the Goblet of Fire | Professor Filius Flitwick | | |
| Small Town Folk | Knackerman | | |
| 2007 | Harry Potter and the Order of the Phoenix | Professor Filius Flitwick | | |
| 2008 | Agent One-Half | Agent One-Half | | |
| The Chronicles of Narnia: Prince Caspian | Nikabrik | | |
| 2009 | Harry Potter and the Half-Blood Prince | Professor Filius Flitwick | | |
| Tell Him Next Year | Santa's Elf | Short film | |
| 2010 | Harry Potter and the Deathly Hallows – Part 1 | Griphook | | |
| 2011 | Dick and Dom's Funny Business | Himself | | |
| Harry Potter and the Deathly Hallows – Part 2 | Griphook / Professor Filius Flitwick | | |
| 2012 | Chingari | Gangster Boss | As featured on An Idiot Abroad 3 | |
| An Idiot Abroad | Himself | Series 3 | |
| 2013 | Jack the Giant Slayer | Old Hamm | | |
| Ashens and the Quest for the GameChild | Himself / The Silver Skull Unmasked | Independent film | |
| Dwarves Assemble | Oberon the Ufgood | All episodes | |
| The Seven Dwarfs of Auschwitz | Himself / Presenter | Documentary | |
| Saint Bernard | Othello | | |
| 2014 | Get Santa | Sally | | |
| Text Santa | | | |
| 2014–2015 | Weekend Escapes with Warwick Davis | Presenter | 2 series | |
| Celebrity Squares | |
| 2015 | Piers Morgan's Life Stories | Himself | | |
