Susan Sarandon and Katherine Heigl in The Big Wedding (2013)

Katherine Heigl and Topher Grace in The Big Wedding (2013)

Robert De Niro and Katherine Heigl in The Big Wedding (2013)

Katherine Heigl, Topher Grace, Amanda Seyfried, and Ben Barnes in The Big Wedding (2013)

Robert De Niro and Susan Sarandon in The Big Wedding (2013)

Amanda Seyfried and Ben Barnes in The Big Wedding (2013)

Robert De Niro and Ben Barnes in The Big Wedding (2013)

Katherine Heigl, Amanda Seyfried, and Ben Barnes in The Big Wedding (2013)

Patricia Rae and Ben Barnes in The Big Wedding (2013)

Katherine Heigl in The Big Wedding (2013)

Robert De Niro, Susan Sarandon, and Diane Keaton in The Big Wedding (2013)

Robert De Niro and Diane Keaton in The Big Wedding (2013)

Robin Williams, Amanda Seyfried, and Ben Barnes in The Big Wedding (2013)

Amanda Seyfried in The Big Wedding (2013)

Katherine Heigl and Justin Zackham in The Big Wedding (2013)

Robert De Niro, Diane Keaton, Patricia Rae, and Ana Ayora in The Big Wedding (2013)

Topher Grace and Ben Barnes in The Big Wedding (2013)

Diane Keaton, Topher Grace, and Ben Barnes in The Big Wedding (2013)

Robert De Niro, Diane Keaton, Katherine Heigl, Christine Ebersole, Patricia Rae, and Ana Ayora in The Big Wedding (2013)

Diane Keaton, Topher Grace, and Ana Ayora in The Big Wedding (2013)

Robert De Niro, Susan Sarandon, and Robin Williams in The Big Wedding (2013)

Oona Chaplin at an event for The Big Wedding (2013)

Eleanor Tomlinson at an event for The Big Wedding (2013)

MyAnna Buring at an event for The Big Wedding (2013)

Robert De Niro, Susan Sarandon, Robin Williams, Diane Keaton, Katherine Heigl, Christine Ebersole, Topher Grace, Amanda Seyfried, and Ben Barnes in The Big Wedding (2013)

Robert De Niro, Susan Sarandon, Robin Williams, Diane Keaton, Katherine Heigl, Christine Ebersole, Topher Grace, David Rasche, Patricia Rae, Amanda Seyfried, Ben Barnes, and Ana Ayora in The Big Wedding (2013)

Robert De Niro, Susan Sarandon, Robin Williams, Diane Keaton, Katherine Heigl, Topher Grace, Amanda Seyfried, and Ben Barnes in The Big Wedding (2013)

Robert De Niro, Susan Sarandon, Robin Williams, Diane Keaton, Katherine Heigl, Topher Grace, and Amanda Seyfried in The Big Wedding (2013)