The Switch [2010]

The Switch is a romantic comedy film starring Jennifer Aniston and Jason Bateman. The film is based on the short story "Baster" by Jeffrey Eugenides. Kassie (Aniston) is planning on having a child through artificial insemination by donor. Her best friend Wally (Bateman) loses the sperm donor's semen in a drunken accident and is prompted to replace it with his own. Seven years later, Kassie returns to his life and he meets her son. The boy exhibits many of Wally's own personal traits, causing him to realize he may be her son's real father.
Release date: August 20, 2010