One of my student jobs was to transport film spools to theaters. They would arrive at my door in a box, I would walk them to the cinema on a small trolley and spend 2-3 hours in the projection rooms. The reels were spliced on site by a technician, projected, cut again and I transported them back home where they would be picked up again.

The job was less to transport the spools, but to supervise that there was no copying happening.

This was late 200x-ish, before digital protection became widespread iirc.