In 2003, Duff received her first major role in a feature film when she was cast alongside Frankie Muniz in Agent Cody Banks. The film received positive reviews and was successful enough to spawn a sequel, in which Duff did not participate. The same year, Duff reprised her role as Lizzie Mcguire for The Lizzie McGuire Movie. It received mixed reviews, with certain critics calling it "an unabashed promotion of Duff’s image, just as Crossroads was for Spears", while other reviews were generally positive and encouraging.

source:en.wikipedia.org