When director David Wain let loose the news that he was in the planning stages of a prequel to his star-studded, cult classic comedy "Wet Hot American Summer," fans were ecstatic, but perhaps a bit doubtful that it would really happen. After all, would stars like Paul Rudd and Elizabeth Banks really want to go back and do that? Rudd and Banks, along with a number of other co-stars from the 2001, 1980s-set camp film, told Entertainment Weekly with great enthusiasm that they'd be up to return to...