It wouldn't be the MTV Movie Awards without a Zac Efron shirtless moment [1], and Efron didn't disappoint this year. When he and Neighbors costar Dave Franco accepted their award for best duo [2], they paid homage to their comedy by dressing up as two versions of Robert De Niro [3] and stayed in character from the audience to the stage — including nipple twisting and groin grabbing. It's as good as it sounds.