History -- make that high school -- may repeat itself when Marni learns that Joanna, the mean girl from her past, is set to be her sister-in-law. Before the wedding bells toll, Marni must show her brother that a tiger doesn't change its stripes. On Marni's side is her mother, while Joanna's backed by her wealthy aunt.
Kristen Bell
as Marni
Jamie Lee Curtis
as Gail
Sigourney Weaver
as Ramona
Odette Annable
as Joanna
Victor Garber
as Mark
Betty White
as Grandma Bunny
James Wolk
as Will
Kristin Chenoweth
as Georgia
Sean Wing
as Charlie
Kyle Bornheimer
as Tim
William Brent
as Ben
Christine Lakin
as Taylor