Legs (1983)
Legs is a 1983 television musical drama film starring Shanna Reed, Deborah Geffner, Lawrence Leritz, David Marshall Grant, Maureen Teefy, and Gwen Verdon. It was directed by Jerrold Freedman and written by Freedman and Brian Garfield. The film was retitled Rockettes for its UK video release.
More at Wikipedia.