Don't worry about asking for a hand inspection of your film. I do it all the time and have never encountered a problem from the TSA. I am prepared, though. I take the film out of the little plastic containers and put it in a clear plastic bag so that when I get up to the x-ray apparatus I can just hand it over to the attendant with a request for hand inspection. Usually they just glance at it briefly and pass it along so I can pick it up on the other side. On the way home, I usually have my film in two plastic bags - one for the used film and the other for left over unused film. Again, I have never encountered any resistance to this method.