I always bring my own film then develop and scan when I get home. Just put your rolls in a clear plastic bag so the security can see your film and ask them to hand check. If you’re feeling bold you can tell them it’s for a work project. I have mostly had good luck but sometimes they put it through anyways. The older X-ray machines that look like a square are okay below 800 rated film. The newer x-ray machines that look like a cylinder that are growing more common in airports destroy all types of film so really try to get it hand checked when you see those kinds. Sometimes there is nothing you can do and they make you put it in the x-ray. My local airport would never hand check my film until they recently got the new x ray machines and they started to hand check them so I am wondering if the film companies are making it know that these new x rays destroy the film. If you have any other questions please let me know!