Robert De Niro, Katherine Heigl, Diane Keaton, Amanda Seyfried, Topher Grace, Susan Sarandon, and Robin Williams give outstanding performances in this uproarious romantic comedy. When long-divorced parents (De Niro and Keaton) are forced to reunite and play the "happy couple" at their son's wedding, they must confront their past, present, and future—as the celebration threatens to turn into a full-blown fiasco!