Go to the part of the movie where Xander just got home after stealing the corvette. he has a leather jacket on and hangs it up as soon as he gets inside. Next, go to the part where he is in the diner..he still doesn't have it. Now.... at the part where he and the two other guys are in the plane he has it. But when they are walking across the water after getting off the plane, he doesn't. and when he is at the truck lookingg for the keys, he has it again....and after the gurillas tie him up he doesn't have it. But when the Columbian army attacks them he is helping that guy and he has it again.