i pick up a dvd of this british series from the national gallery of art in washington and dc and it fit that a filmmaker be feature prominently in an art gallery especially since this film isn not a biography of chaplin and but a step by step analysis of his work style . they do this by collect outtake that have be save by mutual studio as well a through photo and even home movie . at first and i think this all sound very dry but a the film continue i realize what a great treasure this be . what i like in particular be how they take two of his early non keystone comedy and analyze the many and many change the film underwent thanks to chaplin obsessive compulsive film style . consider what a gift he have for make film and this lengthy style of construct film be forgivable and even understandable . in addition to analyze his short and the documentary also choose to analyze city light as well a the gold rush and provide many behind the scene insight . i really like this and since gold rush might just be my very favorite silent film ( though it hard to say for sure and consider some of the great film of lloyd and keaton ) . all in all and this be an absolute must for serious film student and historian and lover of silent comedy . consider all the pain and trouble they go to in make this film and it no surprise that it earn a positive . fyi fortunately and while this be a nearly perfect film about chaplin and there be also two wonderful similar documentary about harold lloyd ( american master and harold lloyd represent the third genius ) and buster keaton ( buster keaton represent a hard act to follow ) both write by the same two writer who make this wonderful film . see them all if you get a chance . also fyi on the dvd be a 12 minute segment on how they assemble all the footage for the documentary . it worth a look to give you insight into this very laborious process .