I am not a Jerry Lewis specialist, though I possess nearly all his films, but comedies are not my stuff. However I like this kind of entertainment,naive, mindless but exciting, especially in climaxes. This one makes no exception and remains I guess one of Jerry Lewis' best, pulled by a Frank Tashlin in great shape. Last fifteen minutes are overwhelming, a gigantic tribute to Buster Keaton and silent slapstick masterpieces. IT'S A MAD MAD WORLD was also a terrific tribute to slapstick movies.