EW - The truth is, I have absolutely no idea how authentic the new Navy SEALs-based film Act of Valor is. Like many people, I have never been a SEAL, or a Marine, or even a particularly good Call of Duty player. The closest I have ever come to serving in the armed forces was a year in Cub Scouts, during which I actually earned a badge for learning how to tie a neck tie. So forgive me if I don’t pretend to judge whether this film — a fictional story starring genuine, active-duty SEALs — is a realistic depiction of the lives of some of the military’s most elite operators. But talking to the movie’s directors, former stuntmen Mike “Mouse” McCoy and Scott Waugh, it certainly sounds like Valor captures the way modern SEALs work. Below, the directors talk about why they cast real SEALs in the starring roles, how they made the action feel so convincing, and why they couldn’t always get everything exactly right.