Sarah Ellen Polley is a Canadian actress, writer, director, producer and political activist. Polley first garnered attention as a child actress for her role as Ramona Quimby in the television series Ramona, based on Beverly Cleary's books. Subsequently this 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.Her first documentary film, Stories We Tell (2012), was awarded the $100,000 prize for best Canadian film of the year by the Toronto Film Critics Association. In 2017, Polley executive produced the film A Better Man (2017), and wrote the miniseries Alias Grace, based on the 1996 novel of the same name by Margaret Atwood, which Polley began adapting in 2012.