Chaplin's most underrated film
Even though I was born in the late '70s, I was raised on Chaplin. My parents rented videos of his films for me to watch when I was a small child, and to this day he remains one of my favorite filmmakers. But one film of his they didn't show me was Monsieur Verdoux, thinking it too dark. When I finally got around to watching it as an adult, I loved it, and I consider it among his greatest works. This seems to be a minority opinion, but it had a lot of things going against it. It was the first film where he completely left his Tramp persona behind and looked almost unrecognizably different. And I'm pretty sure 1940s audiences weren't exactly prepared for a comedy about a serial killer. Sure, there was Arsenic & Old Lace--itself a very funny film--but there at least the protagonist was a sympathetic character. MV features a blatant anti-hero murderer as its lead; it was sort of the American Psycho of its time.
Part of the joy of the film is how morbidly fascinating this character is, the double life he lives and his weird, twisted sense of morality, his cynical view of humanity. It has some great scenes, including the one involving the young woman (who I think was supposed to be a prostitute) he tries to use as a guinea pig for one of his twisted experiments. The movie also features some great comedy work by Martha Raye (a rare instance when Chaplin, control freak that he was, allowed one of his costars to upstage him). And the movie's ending seemed to expand on the premise in unexpected ways, raising it from black comedy to something more significant. It's a truly fine picture that I wish got more recognition.