When the biological mother of an adopted son comes for the wedding, the divorced parents (Robert De Niro & Diane Keaton) have to pretend to be married again. This causes problems with the current gf (Susan Sarandon), while the other siblings (Katherine Heigl, Topher Grace) bring their own issues. As you can see, the cast if full of gifted comic actors and they bring their talents to bear. The writing doesn’t match up: The plot is stale and hardly ever funny. It’s full of comic energy, but lite on laffs.