Jake Gyllenhaal certainly looked the part of the strong, brave (and sexy!) hero when he bulked up for 2010's Prince of Persia. But the actor told Peoplethat the ostriches on set had him quaking in his boots. "They would say, 'Don't make any noise around the ostriches. They'll tear out your eyes and rip out your heart.' So, I was naturally terrified," Jake said. "They look like they're innocent, but they're really not."