Before the digital age one of the challenges for the amateur photographer was transporting and storing both processed film (particularly slide transparencies, and unexposed and undeveloped films. This was particularly true of the ubiquitous Super 8 (8mm) film which was only 3 minutes long. To make for example a travel movie of any length one needed to take a lot of these films and then splice them together (with or without additional editing) when they had been developed. I recall carting bags of film around Europe in my younger days.
One particular challenge was putting film though x ray machines at airports.which were pretty basic at the time. Because film is light sensitive it is also susceptible to being affected by x rays. To guard against this there were specially designed lead lined bags to transport undeveloped film in. Below is one such bag together with a general use Kodak carry bag for print film..