The movie version of 21 Jump Street seems like an absurd thing at face value. But take Jonah Hill as one lead with a script by Scott Pilgrim co-writer Michael Bacall and direction from Phil Lord and Chris Miller, who did such a good job with Cloudy With a Chance of Meatballs, and I can't quite resist. (And Emma Stone might be a part of this, too.) What if Channing Tatum was the other lead? Would that break the spell all the other ...