The use of nitrocellulose film for motion pictures led to a widespread requirement for fireproof projection rooms with wall coverings made of asbestos. The US Navy shot a training film for projectionists that included footage of a controlled ignition of a reel of nitrate film, which continued to burn even when fully submerged in water. Unlike many other flammable materials, nitrocellulose does not need the oxygen in the air to keep burning and once it is burning, it is extremely difficult to put out. Immersing burning film in water may not extinguish the fire and it could actually increase the amount of smoke produced.[5] Owing to public safety precautions, the London Underground forbade transport of nitrate films on its system until well past the introduction of safety film.Even if it isn't the older nitrocellulose kind there can still be problems. For both the cellulose acetate base and the newer polyester base, firefighters are advised to wear self-contained breathing apparatus when attending a fire, and wear bunker gear. So no, it's not okay to burn.
A cinema fire caused by ignition of nitrocellulose film stock (foreshadowed by an earlier small fire) was a central plot element in the Italian film Cinema Paradiso (1988), and more recently, Inglourious Basterds..."
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posted by klangklangston at 7:40 PM on October 5