Mamá por encargo

Tina Fey and Amy Poehler prove that buddy comedies need not be the exclusive domain of naughty boys.

"Baby Mama" is no comic masterpiece, but it's at least as good as any number of formulaic comedies churned out by Hollywood and much better than many others. Fey is the uptight career woman who hears her biological clock ticking at 37 and wants to have a baby before it's too late. Poehler is the low-class, free-wheeling blonde who agrees to be her surrogate mother for a hefty fee. The usual odd-couple conflicts ensue, maternal instincts kick in, and in traditional sitcom style, everyone gets what they want in the end.

The movie is mostly an excuse to give Fey and Poehler the chance to riff off of one another, and they do it well. Poehler especially displays the ability to carry a movie, something most SNL veterans aren't able to do. She's funny, but she's also able to embody an actual character rather than simply do skit-T.V. schtick. Just watch her horrified face the first time she tastes water; or the hilarious scene when Fey wrestles her into the shower and begins to scrub the hair dye off of her head in a scene that spoofs "Silkwood."

Also starring Greg Kinnear as a smoothie store owner, and a whacked out Steve Martin as Fey's new age boss.

Grade: A-