Fey’s ‘Baby Mama’a sweet surprise

Tina Fey’s biological clock looms like Big Ben and Amy Poehler provides the ding-dong in the surrogacy satire “Baby Mama.” About a barren thirtysomething’s need to breed, the movie is a rare breed itself in chauvinist Hollywood. It’s a genuinely funny girl-buddy comedy that’s more about female bonding and less about getting the guy.

Two of the most talented dames to ever emerge from the ranks of “Saturday Night Live,” the bespectacled straightwoman Fey and adorably delirious Poehler share a honed comic timing and an effortless chemistry here as they have on the tube together.