For some reason, films about Hollywood ever paid dividends in the cinema that came from there and some of the great filmmakers of the classic period made extraordinary films about its backstage which, perhaps for its reflexivity, became fine examples of modernity. As one of the great filmmakers of post-classic Hollywood, Lewis often visited that territory of meta-narrativity, always with magnified results.
If "The Bellboy" is an amazing film, this one is irrefutable proof that Jerry is probably one of the most creative and funny directors ever. With this usual sarcasm, but still with a poetic view of hollywood (for exemple the sequence with the girl singing and after Jerry put is own voice above, is a beautiful tribute to "Singing in the rain"). This is the beginning but already contains all the elements.
A ingenius string of sight gags that pays homage to Laurel & Hardy and Chaplin as well as the fiilmmaking craft. Check out my Lewis audio series, which features this film. It's a 10 hour study of Lewis. http://mondofilmpodcast.blogspot.com/2012/08/episode-07-genius-of-jerry-lewis-part.html