This film has to be regarded as a hilarious one-man-act by Peter Sellers. I saw it on its first run UK cinema release in 1969 and I've seen it at least a dozen times since. I would gladly watch it another dozen times; it always makes me laugh. The supporting cast perform adequately but Peter Sellers does all the work. He is simply one of the all-time greatest masters of great comedy timing. I was surprised to read so many negative comments on this site in association with this film. I can only surmise that they have come from a younger generation who have had their sense of humour surgically removed due to a force fed diet of unamusing US sitcoms. If you can't laugh at this film you must be birdie-num-num!