Even if you're shooting real film, it's only high speed (ISO) that you need to worry about the x-ray machines, and even then it's still questionable. I used to regularly shoot 1600 ISO film and never had any issues traveling with it. (I am a hobbyist and nothing I shoot is important enough to go through the hassle of a "hand inspection".) The recommendation, however, is anything over 800 ISO should be hand inspected and not sent through the x-ray machines.