To the amusement of their adult children and friends, long divorced couple Don and Ellie Griffin are once again forced to play the happy couple for the sake of their adopted son's wedding after his ultra conservative biological mother unexpectedly decides to fly halfway across the world to attend. With all of the wedding guests looking on, the Griffins are hilariously forced to confront their past, present and future - and hopefully avoid killing each other in the process.
Elenco: Robert De Niro , Diane Keaton , Katherine Heigl , Amanda Seyfried , Topher Grace , Susan Sarandon , Robin Williams , Ben Barnes , Christa Campbell , Marc Blucas , Kyle Bornheimer , Christine Ebersole , David Rasche , Patricia Rae , Ana Ayora , Megan Ketch .