In the independent coming-of-age drama The Tribes of Palos Verdes, she reunited with her Butter co-star Jennifer Garner, participating in a real-estate agent living in Palos Verdes, an affluent, coastal suburb of Los Angeles. Silverstone portrayed the near friend of a teenager turned top secret agent in the motion-spy film Stormbreaker (2006), directed by Geoffrey Sax and co-starring Alex Pettyfer, Ewan McGregor and Mickey Rourke.