"The Avengers," Bradley Cooper, and Jamie Foxx were among the big winners at Sunday's MTV Movie Awards. But the show is more about moments than filling trophy cases. Here are seven moments that had us doing double-takes. Bottomless contestSeth Rogen, Danny McBride and and Zac Efron presented the award for "best shirtless perfoirmance" and decided to stage their own "bottomless" contest, with Rogen...