With an all-star cast led by Robert De Niro (Meet the Fockers, Analyze That), Katherine Heigl (27 Dresses), Diane Keaton (Morning Glory, Annie Hall), Amanda Seyfried (Mamma Mia!) and Topher Grace (In Good Company), with Susan Sarandon (Shall We Dance) and Robin Williams (Good Will Hunting), The Big Wedding is an uproarious romantic comedy about a charmingly modern family trying to survive a weekend wedding celebration that has the potential to become a full blown family fiasco. To the amusement of their adult children and friends, long divorced couple Don and Ellie Griffin (De Niro and Keaton) 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.