The Switch (2010)

Directors: 

Josh Gordon, Will Speck

Writers:

Allan Loeb (screenplay), Jeffrey Eugenides (short story "Baster")

Stars:

 Jennifer Aniston, Jason Bateman and Patrick Wilson

Genre: Comedy | Drama | Romance

Plot:

An unmarried 40-year-old woman turns to a turkey baster in order to become pregnant. Seven years later, she reunites with her best friend, who has been living with a secret: he replaced her preferred sperm sample with his own.