Tina Fey and Amy Poehler in Baby MamaBABY MAMA

Despite its sunny, friendly veneer, there's a rather scrappy little war being waged within writer/director Michael McCullers' Baby Mama - one between a lighthearted, pleasant sitcom and a sharper, smarter, more cynical sitcom. (Two and a Half Men versus 30 Rock, as it were.) The former wins, and we could have predicted as much, but the best parts of this engaging buddy flick suggest the truly sparkling comedy it might have been, if only it weren't so eager to be ... well, lighthearted and pleasant.

Jennifer Aniston and Clive Owen in DerailedDERAILED

There's nothing all that wrong with director Mikael Hafstrom's thriller Derailed, until, that is, it turns into a thriller. Chicagoan Charles Schine (Clive Owen) is a harried family man with a wife (Melissa George) and a young, diabetic daughter. While commuting to work one morning, he meets a stranger on the train: the beguiling, flirtatious - and similarly married - Lucinda (Jennifer Aniston). Over the course of a few days, the two enjoy snappy conversation, meet for drinks, and eventually find themselves a hotel. But before their affair can be consummated, LaRoche (Vincent Cassel), a scruffy-looking nightmare with a gun and a thick French accent, breaks into their room, takes their wallets, beats Charles within an inch of his life, and rapes Lucinda. Then everything goes to hell, both for the characters and, unfortunately, for the movie.