This week at the movies, we've got a scheming tween (Diary of a Wimpy Kid, starring Zachary Gordon and Steve Zahn); squabbling exes (The Bounty Hunter, starring Gerard Butler and Jennifer Aniston); and hazardous healthcare (Repo Men, starring Jude Law and Forest Whitaker). What do the critics have to say? It's a (debatable) maxim that the book is always better than the movie. That certainly seems to be the case with Diary of a Wimpy Kid, which critics say contains moments of insight and humor but never fleshes out its middle school characters with the same empathy as Jeff Kinney's...