Expecting Banks

The What to Expect When You’re Expecting movie keeps getting prettier and prettier.

Elizabeth Banks tease-tweeted a little while ago that she “spent the morning standing around in my underwear with a nice group of strangers trying on bellies,” later confirming she has joined Cameron Diaz, Jennifer Lopez, Brooklyn Decker, Ed Helms, and Isla Fisher in the book’s big-screen adaptation.

The actress didn’t offer any details on her character, but I’m willing to bet she’ll be beautiful and funny.

Photo: UsMagazine.com.

Update 1: Well, the deets are in.

Banks is going to be playing a Ms. Know It All author and breast-feeding enthusiast whose every notion on child rearing is debunked when she gets preggers.

I Love You, Man player Rob Huebel and Anna Kendrick (Up in the Air) are also on board, btw.

Update 2: Meanwhile, newcomer Rebel Wilson, who stole many a scene from Kristin Wiig in Bridesmaids, will play a store clerk who works for Banks.