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 … Robert De Niro, Diane Keaton, Amanda Seyfried, Susan Sarandon, Katherine Heigl, Topher Grace, Robin Williams Added on Amazon Prime 2023-05-23. Added on HBO 2023-06-27. Youtube Trailer