"Sucker Punch" is so godawful that Dave and Alonso consider apprenticeships for new careers as, respectively, a butcher and a weaver of Chanel braid. But until that happens, they review "Potiche" and the new "Diary of a Wimpy Kid" movie, as well as HBO's "Mildred Pierce" and the wonderfully depressing first two movies based on the "Peanuts" comic strip.