The actors had to sing along with a metronome, for the musicians that would normally have accompanied them were on strike at the time. Gwen Verdon was famous on Broadway for her hip movements, especially her "bumps", as they are called, but in 1958 "bumps" were not allowed in films, so her first number, "A Little Brains", contains odd static pauses where she had done "bumps" on stage. The Mambo Dancer who dances with Gwen Verdon in the "Joe Hardy" t ...[Read Story ]