Jennifer Aniston Pictures: Jennifer Aniston arrives on the red carpet at "The Switch" movie premiere held at the ArcLight Cinemas on August 16, 2010 in Hollywood, California.

A 40-year-old unmarried woman decides to become pregnant by inseminating herself with a turkey baster. What she doesn't know is that the sperm is from her best friend, who must live with the secret that the child is his.

"The Switch" opens in theaters nationwide on August 20.

Photo credit: Tina Gill / PR Photos