Quote Originally Posted by holmburgers View Post
Really?! I always wondered what safety-film meant. That makes sense I guess. You know, the bikes we take for common today were once known as safety bikes, compared to the giant front wheeled 'penny-farthings' of the day.

My understanding is that flammable nitrate-base film was replaced with a more stable acetate base, which was safer, and marketed as "safety film." I have never known just how flammable it was, whether it would spontaneously ignite perhaps after some time to oxidize in air, or if the heat of a movie projector would ignite it, or what.