Correct me if I'm wrong, but didn't the ending to Alexander need to be reshot because they had the film go through an X-ray machine and it fried it all?
Unexposed or exposed but not yet developed film is a different story to video tape. Usually the film producers make sure the film doesn't go through x-ray machines, they have hand search arrangements with their couriers. Video tape is digital and would be damaged by strong magnetic forces, but go through x-ray without problems.
the only time you have a problem with undeveloped film getting ruined through an x-ray machine is when its iso/asa is above and beyond 800 anything under that is fine i've sent 35mm film with iso of 100 & 400 through the machines with no problem i have also done this with my dvx100b and lots of tapes with no problem