It's subpar sitcom: Jennifer Aniston wants a baby. She uses a sperm donor. Jason Bateman loves her, but his passion is unrequited. So he drunkenly switches his sperm for the donor's. Seven years later, the kid (Thomas Robinson) shows up like Bateman's Mini-Me. What to do? The film offers few — make that no — surprises. What almost saves it is the acting. Aniston has charm. And the indispensable Bateman is a gift to comedies on life support. His scenes with the boy belong to a funnier, more feeling movie.