Assorted couples cope with pregnancies planned and unplanned, adoption, and the epic change coming to their lives. It’s wafer-thin, but it has plenty of laughs. What’s surprising is how touching this film manages to be. Director Kirk Jones and the screenwriters found real pathos in adapting author Heidi Murkoff’s pregnancy bible. The ensemble cast includes Cameron Diaz, Jennifer Lopez, Elizabeth Banks, Anna Kendrick, Dennis Quaid and Chris Rock.