
Sarah Ellen Polley OC (born January 8, 1979) is a Canadian filmmaker, political activist and retired actress. She first garnered attention as a child actress for her role as Ramona Quimby in the television series Ramona, based on Beverly Cleary's books. This subsequently led to her role as Sara Stanley in the Canadian television series Road to Avonlea (1990–1996). She has starred in many feature films, including The Adventures of Baron Munchausen (1988), Exotica (1994), The Sweet Hereafter (1997), Guinevere (1999), Go (1999), The Weight of Water (2000), No Such Thing (2001), My Life Without Me (2003), Dawn of the Dead (2004), Splice (2009), and Mr. Nobody (2009).
Polley made her feature film directorial debut with Away from Her (2006), for which she won the Canadian Screen Award for Best Director and was nominated for the Academy Award for Best Adapted Screenplay. Polley's second film, Take This Waltz (2011), premiered at the 2011 Toronto International Film Festival, followed by her first documentary film, Stories We Tell (2012). She also wrote the miniseries Alias Grace, based on the 1996 novel of the same name by Margaret Atwood. In 2022, Polley wrote and directed the film Women Talking, based on the 2018 novel of the same name by Miriam Toews, for which she won the Academy Award for Best Adapted Screenplay.
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Dawn of the Dead
2004 · as Ana

Splice
2010 · as Elsa

Beowulf & Grendel
2005 · as Selma

Mr. Nobody
2009 · as Adult Elise

eXistenZ
1999 · as Merle

The Adventures of Baron Munchausen
1988 · as Sally Salt

Exotica
1994 · as Tracey

Wrath of Gods
2007 · as Self

Go
1999 · as Ronna Martin

The Sweet Hereafter
1997 · as Nicole Burnell

My Life Without Me
2003 · as Ann

The I Inside
2004 · as Clair

Don't Come Knocking
2005 · as Sky

The Weight of Water
2001 · as Maren Hontvedt

The Big Town
1987 · as Christy Donaldson

The Secret Life of Words
2005 · as Hanna

Last Night
1998 · as Jennifer Wheeler

Hands of a Stranger
1987 · as Suzie Hearn