You can still get into trouble with high speed wet-process film (700-1000), and, of course you can't take X-Ray film through, but past that, no troubles.
in the past 12 months ive taken xl1's xl2's and gydv5000's (with tapes) through both hand xray and as checked baggage on about 10 round trips through both national and interantional airports. yet to have a single problem.
...except or that XL1 they dropped off the cargo chute and the tape shipment that went to Pittsburgh, but none of those problems had anything to do with X-Ray.