Going into this weekend Hot Tub Time Machine looked like an unbeatable surprise hit. It got name-checked on 30 Rock and even got a giggle out of Letterman, and every time you came back to Twitter it seemed that #hottubtimemachine was creeping toward #justinbieber as a top trending topic. Even my friends notoriously indifferent to new releases were pumped about it, and when I gathered three of
