This is not technically a movie but a tv series, but since only one episode was ever broadcast I think it merits special consideration.
I give you the wikipedia summary:
It centres on fictionalised versions of Adolf Hitler and Eva Braun, who live next door to a Jewish couple, Arny and Rosa Goldenstein. The show spoofs elements of mid-20th century American sitcoms and is driven by Hitler's inability to get along with his neighbours.