The father-son bonding turns out to be the strongest part of this predictable Gordon/Speck comedy. Neurotic Wally (Bateman) learns best friend Kassie (Aniston) is using artificial insemination to have a baby. So he drunkenly substitutes his own swimmers and then slowly figures out he's a dad when Kassie, who finally returns to New York, introduces her six-year-old son Sebastian (Robinson), a mini-me version of Wally. Adapted from the Jeffrey Eugenides' short story.