Laurence Harvey doing a strip tease to Hamlet? Yul Brynner in drag? Christopher Lee as "ship's vampire"? Raquel Welch as whip wielding slave driver to topless oarswomen? Conservative British upperclass businessmen wading waste deep in raw sewage?....ah, yes...leave it to the English.....lol

I've never seen this movie, but from the description it sounds like that Steve Martin movie "Dirty Rotten Scoundrels". Was that by any chance a remake of this?