Well, Life of Brian is a typical British comedy which is also a film noir. Many people in America will find it blasphemous because many of us don’t know the references made in the movie. I know for a fact that this was also the case in many European countries when the film was released.
Anyways, British humor can be extremely funny. I’ve seen “Yes, Minister” and “Yes, Prime Minister”, and those series are really amusing. British understatement humor at its finest.