In the movie “The Switch,” originally entitled “The Baster,” (and based on the short story “The Baster”), Jennifer Aniston stars alongside Jason (master) Bateman in this offbeat comedy as Kassie, a smart, fun—loving single woman who, despite her neurotic best friend Wally’s (Jason Bateman) objections, decides it’s time to have a baby—even if it means doing it by herself… with a little help from a charming sperm donor (Patrick Wilson). But, unbeknownst to her, Kassie’s plans go awry because of a last—minute switch that isn’t discovered until seven years later when Wally finally gets acquainted with Kassie’s cute – though slightly neurotic – son. From the people behind “Little Miss Sunshine” and “Juno.”