Kate Holbrook (Tina Fey) is a successful short-skirt exec at a health-food empire. Kate can do no wrong in the eyes of her CEO and is trusted innately. She’s funny, attractive and lives in an upscale Philly brownstone decked out with accruements you only see in catalogs and swank magazines. But her apartment is empty, a stainless steel womb as barren as her own. Single, and at the past-prime age of 37, Kate needs a baby. After aborted attempts to manufacture or adopt a child of her own, Kate finally turns to a surrogate-mother enterprise where for 100,000 bucks she rents a proletarian womb carried by deer-in-the-headlights Angie (Amy Poehler). Of course, one thing leads to another and the two end up playing a Knocked Up take on The Odd Couple. With Oscar being a white-trash ditz. As a script, Baby Mama is a mess. There’s no rhyme or reason to how things play out, and the shaky internal logic isn’t really abided by. One of those comedies you laugh frequently during, but as you leave the theater can’t recall anything in particular you laughed at.