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The Hunger Games personality Elizabeth Banks stars alongside a comic ensemble that includes Cameron Diaz, Jennifer Lopez and Brooklyn Decker in What to Expect When You're Expecting, and we have an exclusive look at the fun movie!

Video: Watch the 'What to Expect' Trailer

"[My character's] entire background makes her a baby expert and she has every expectation that [her] pregnancy will be wonderful -- and is sort of taken aback when everything goes as wrong as they could," says Elizabeth. "The irony of her life is that she gets the pregnancy from hell."

Inspired by the well-known New York Times bestselling pregnancy manual, What to Expect When You're Expecting chronicles the hilarious and heartwarming stories of five couples who face the many challenges adjusting to pregnancy and parenthood.

Related: Elizabeth Banks Spills About Surrogate, Baby Felix

"I think that this is a very fun and entertaining film that has wonderful actors playing really well-developed, fun characters," says Cameron. "But it is really truthful to the experience of starting a family."

Chace Crawford, Anna Kendrick, Matthew Morrison, Dennis Quaid, Rodrigo Santoro, Ben Falcone and Joe Manganiello round out the cast. What to Expect When You're Expecting opens in theaters everywhere on May 18, 2012 -- just in time for Mother's Day.