Katherine Heigl and Josh Duhamel are opposites who unexpectedly get pushed together in this new romantic comedy. The camera loves Katherine and we love Josh, especially in his undies. She’s got the acting chops and you can bet on it that she hasn’t even scratched the surface yet of what she can really do. He’s the likeable good guy who we know we’ll be seeing much more of. Put them together with a baby and what could be so bad, nothing. “Life as We Know It” from Warner Bros. opens Friday.