When not a single copy of a film is known to exist in any archive, it is considered lost. An estimated 90% of all American silent films and 50% of American sound films made before 1950 are believed to have been lost, in part because early nitrate film was chemically unstable and prone to rapid decomposition. Early film was highly flammable too, and fires claimed more than a few archives. While many of Charlie Chaplin’s films survived, he sought to destroy his own A Woman of the Sea. Why? Discuss