| Margaret Atwood: A Word After a Word After a Word Is Power (2019) as Self - Filmmaker |
| Reel Herstory: The Real Story of Reel Women (2014) as Self |
| Stories We Tell (2012) as Self (uncredited) |
| Trigger (2010) as Hillary |
| Splice (2010) as Elsa |
| Mr. Nobody (2009) as Adult Elise |
| The Madness and Misadventures of Munchausen (2008) as Self - 'Sally Salt' |
| Reiði guðanna (2007) as Self |
| The Secret Life of Words (2005) as Hanna |
| Beowulf & Grendel (2005) as Selma |
| Don't Come Knocking (2005) as Sky |
| Siblings (2004) as Tabby |
| Sugar (2004) as Pregnant Girl |
| Luck (2004) as Margaret |
| The I Inside (2004) as Clair |
| Dawn of the Dead (2004) as Ana |
| My Life Without Me (2003) as Ann |
| Dermott's Quest (2003) as Gwen |
| The Event (2003) as Dana Shapiro |
| No Such Thing (2002) as Beatrice |
| The Weight of Water (2001) as Maren Hontvedt |
| The Claim (2000) as Hope Burn |
| Preludes (2000) |
| The Law of Enclosures (2000) as Beatty 'Beatrice' |
| This Might Be Good (2000) |
| Love Come Down (2000) as Sister Sarah |
| The Life Before This (1999) as Connie |
| Guinevere (1999) as Harper Sloane |
| eXistenZ (1999) as Merle |
| Go (1999) as Ronna Martin |
| Jerry and Tom (1998) as Deb |
| Last Night (1998) as Jennifer Wheeler |
| White Lies (1998) as Catherine |
| The Sweet Hereafter (1997) as Nicole Burnell |
| The Planet of Junior Brown (1997) as Butter |
| The Hanging Garden (1997) as Teen Rosemary |
| Joe's So Mean to Josephine (1997) as Josephine |
| Children First! (1996) as Host |
| Exotica (1994) as Tracey |
| Johann's Gift to Christmas (1992) as The Angel |
| Road to Avonlea: The Movie (1990) |
| Lantern Hill (1989) as Jody Turner |
| Babar: The Movie (1989) as Young Celeste |
| The Adventures of Baron Munchausen (1988) as Sally Salt |
| The Big Town (1987) as Christy Donaldson |
| Blue Monkey (1987) as Ellen |
| Hands of a Stranger (1987) as Suzie Hearn |
| Pretty Kill (1987) as Karla |
| Heaven On Earth (1987) as Becky Hawthorne |
| The Incredible Time-Travels of Henry Osgood (1986) |
| Confidential (1986) as Emma (child) |
| One Magic Christmas (1985) as Molly Monaghan |
| & Sons Screenplay |
| Seven Veils Thanks |
| Beethoven's Nine: Ode to Humanity Executive Producer |
| Women Talking Director |
| Women Talking Screenplay |
| The Secret Path Executive Producer |
| Stories We Tell Director |
| Stories We Tell Writer |
| Take This Waltz Director |
| Take This Waltz Writer |
| Take This Waltz Producer |
| Away from Her Director |
| Away from Her Writer |
| I Shout Love Director |
| I Shout Love Writer |
| Don't Think Twice Director |
| Don't Think Twice Writer |
| Don't Think Twice Producer |
| The Best Day of My Life Director |
| The Best Day of My Life Screenplay |
| The Bell Jar Director |
| The Bell Jar Writer |
| The Best Kind of People Director |
| The Best Kind of People Screenplay |
| The Best Kind of People Producer |