Jennifer Aniston and Jason Bateman in the comedy movie The Switch.

The Switch Movie Synopsis: Kassie is a smart, fun-loving single woman who, despite her slightly neurotic best friend Wally’s 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. 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 precocious—though slightly neurotic—son.