The film has a rambling plot and does not seem to have a coherent theme, but ends with a tacit denunciation of McCarthyism three years after the fact.
The film also stars Chaplin's son, Michael, who became a Cambridge grad and who would publish the tell-all book I Couldn't Smoke the Grass on My Father's Lawn: Pot, Girls and Swingers in London's Ultra Mod Set.
The book apparently exposed a less than pleasant aspect of Charlie Chaplin as a father, although I have not read the book yet. But it looks like a fun read!