Kodak suggests taking the following precautions when transporting film via the airlines:
Never ship unprocessed film as checked luggage with commercial airlines. Keep all unprocessed film as carry-on baggage.
If you plan to hand-carry unprocessed film on an airplane at an international airport, contact the airport security office before your flight and ask if they will conduct a manual inspection.
個人的經驗，人工檢查不見得所有機場安檢都買單。為了避免浪費時間和不必要的溝通誤會，個人都是放入隨身行李並通過X光，是比較保險且不得已的折衷方式，沖出來的片子(ISO100)也沒發現問題。
據瞭解拖運行李的X光機比入關的隨身行李X光機比還強上許多。底片放入拖運行李簡直死路一條，而且還要面臨未知的儲存溫度和拖運行李遺失的風險...
此外，海關安檢的工作量很大，出國在外不比在國內，語言不通再遇上態度不好或素行不良的海關會很麻煩...個人在國外會向海關人員據理力爭是不得已中的不得已...
