The movie poster and trailer of upcoming romantic comedy The Big Wedding, starring Robert DeNiro, Katherine Heigl, Diane Keaton, Amanda Seyfried,Topher Grace, Susan Sarandon and Robin Williams, has just been released.

The film tells the hilarious story of a charmingly modern family trying to survive a weekend wedding celebration. Catch the Griffins as they are forced to confront their past, present and future – and hopefully avoid a family fiasco in the process, in this new trailer.

Here’s the official synopsis for the film

With an all-star cast led by Robert DeNiro, Katherine Heigl, Diane Keaton, Amanda Seyfried, Topher Grace, with Susan Sarandon and Robin Williams,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.

The Big Wedding, which is set for October 26th, 2012, is written and directed byJustin Zackham.

Watch the trailer below: