That same year, she played one of the lead characters in Terry Gilliam's The Adventures of Baron Munchausen. Polley burst into the public eye the following year, 1990, as Sara Stanley on the popular CBC television series Road to Avonlea. The series made her famous and financially independent, and she was hailed as "Canada's Sweetheart" by the popular press. The show was picked up by the Disney Channel for distribution in the United States. At the age of 12 (around 1991), Polley attended an awards ceremony while wearing a peace sign to protest the first Gulf War. Disney executives asked her to remove it, and she refused. This soured her relationship with Disney, though she continued on Road to Avonlea until 1994. The show ran until 1996; Polley did return as Sara Stanley for an episode in 1995 and for the series finale.