Pin-Up Girl is an awfully thin little musical, even for star Betty Grable, who rarely got vehicles that were worthy of her talents. Even more disappointing is the fact that Pin-Up, starring the most famous pin-up girl of her time, fails to deliver on the promise of its title: Grable is rarely given the chance to show off her fine physical assets, primarily due to the fact that she was pregnant at the time of filming. As is often the case with Grable films, the musical numbers have to carry the picture and while the songs themselves are not especially distinguished, Grable makes the absolute most out of them and forces even the duller ones into something to see. Of special interest is the "Once Too Often" sequence, notable for the appearance of Fred Astaire choreographer Hermes Pan, who performs a semi-apache dance with Grable that's a definite highlight. As her co-star, John Harvey is a bit too insubstantial, and comics Martha Raye and Joe E. Brown use their generous-sized mouths to try for as many laughs as they can, but don't have the material to garner much success. Pin-Up isn't awful, but there's not much aside from Grable (and Pan) to recommend it.