just make sure the same film doesn't go through a bunch of xray machines. the acculumative effect *may* affect your film (after passing thru i.e. 7-8 airports). place the film w/o plastic cans into big ziplock bags so you can hold up to the eye(s) of inspectors. hope this tidbit helps....(posted 9514 days ago)world traveler..... http://www.geocities.com/soho/gallery/5718/index.html