Even turning 50 and making serious Oscar-type movies, hasn't slowed down George Clooney's famous on-set pranking. 'Ides of March' co-star Ryan Gosling revealed that the seemingly highbrow actor loves to indulge in lowbrow gags: "He will come up to you and tell you something very serious, and then you walk away and you realize your pants are wet. He's had like an Evian spray bottle. He's been spraying your crotch the whole time." Judging by how friendly these guys were at TIFF, we doubt Gosling minded too much. But has anyone ever found a way to get back at Clooney?