Over 18 recognizable faces fill the screen during the course of 'New Year's Eve,'
but the stars that didn't get invited to that party shouldn't feel too slighted -- they probably just wound up in 'What to Expect When You're Expecting.' The next omnibus romcom debuted its first trailer on Thursday night, and it features everything from Chris Rock wearing a Baby Bjorn to Cameron Diaz affecting some crazypants accent. Also, Melissa McCarthy's husband, Ben Falcone! Air Marshall Jon, y'all! Watch above.

Starring Cameron Diaz, Jennifer Lopez, Elizabeth Banks, Chris Rock, Anna Kendrick, Matthew Morrison, Chace Crawford, Brooklyn Decker, Rodrigo Santoro, Dennis Quaid, Rob Huebel, Joe Manganiello, Wendi McLendon-Covey and more, 'What to Expect When You're Expecting' arrives in theaters on May 11, 2012.