Just nitpicking, but Chaplin was born in the UK and was already a vaudeville star when he was signed up by Karno and went to Hollywood. His status as an immigrant led to calls for him to be deported when he protested against HUAC. In the end, when he left for the premier of Limelight in London in 1952, the AG revoked his re-entry permit, and he didn't return to the US for twenty years.

Which is not to deny that his silent movie career isn't American culture; just that Chaplin's relationship with America was complicated.