Dress in your pajamas and eat pizza.
The Pajama Game is a 1957 American musical film based on the 1954 stage musical of the same name, itself based on the 1953 novel 7½ Cents by Richard Pike Bissell. The film was produced and directed by George Abbott and Stanley Donen, with most Broadway cast members repeating their roles in the movie with the notable exception of star Doris Day. The choreography is by Bob Fosse, who also staged the dances for the Broadway production.