I'm reading Bob Fosse's bio, and Pajama Game is the second 50s film I've seen which features early Fosse choreography. The other was Damn Yankees.
Unfortunately, Pajama Game didn't have Gwen Verdon to heat things up, but it did have Carol Haney doing the only real Fosse number in the film--the fabulous Steam Heat. Michael Jackson must have stolen a few ideas for his spacewalking from that number, white socks and all.
The other highlights of the film were the wonderfully warm Doris Day and the great tenorish voice of John Raitt. Both did solos of the feature song "Hey There" at different points in the film. Together not very good, because of the disparity in their voices. Raitt is a trained tenor (or very high baritone) who played the original Broadway lead in Carousel, while Doris is one of the great pop singers--and a fine actress as well.
The rest of the film I found rather dull and outdated, though Eddie Foy, Jr provided some comedy and Hernando's Hideaway did bring things to life a bit.
It was exciting to see the great dancer Carol Haney come to life in the famous Steam Heat number--a glimpse of the Fosse that was to come. Was the dance partner on her right Fosse himself? He did such a walk-on in a duo with Gwen in Damn Yankees.