The Big Wedding (2012) - Robert De Niro, Diane Keaton, Katherine Heigl, Robin Williams, Amanda Seyfried

A long-divorced couple fakes being married as their family unites for a wedding.

Director: Justin Zackham
Writer: Justin Zackham
Stars: Robert De Niro, Diane Keaton, Katherine Heigl, Robin Williams, Amanda Seyfried, Topher Grace, Susan Sarandon