If you've had a longing to experience the kind of stultifying French studio film that inspired the New Wave directors of the '50s to launch their revolt, then this is the movie for you it's like a pastry that's been sitting on the shelf for 60 years. Paris 36 takes place in and around a Moulin Rouge-style music hall that's reopened on the eve of World War II. But the ''spicy'' numbers have no dazzle, the actors mug like contestants in a Maurice Chevalier impersonation contest, and the plot is a drily indigestible wad of show-must-go-on preciousness and socialist sentimentality. F

