The film revolves around a group of comedic events that will occur in the lives of a group of criminals. This group consists of four people who want to steal diamonds and during the process of theft, talk to them funny events. After the theft process, each one of them wants to take the diamonds for himself by harming His other friends for the diamond alone.
Low comedy at high speed, it pretends to be a caper movie about a smooth London jewel heist and its infinitely complex aftermath. Actually, it's a smart farce about ingrained cultural differences.
A Fish Called Wanda is vintage black comedy, British-style -- a cruel, dastardly, down-and-dirty jewel-robbery romp that pits thief against thief, while entangling an innocent bystander in the web of greed, romance and decidedly cockeyed high jinks.
As in most of his Python parts... Cleese's character is an extended riff on the concept of pomposity. But Archie is more leavened with humanity than any of his other roles.
The movie's basic joke holds that the overbearing, unselfconscious Americans will do anything and say anything (and usually as loudly as possible), while the timorous British are nearly too polite to breathe.
Perhaps the most unusual aspect of what is surely the year's most original and daring comedy is that John Cleese is not the funniest performer in it. Believe it or not, that honor goes to none other than the usually somber Kevin Kline.