Girls Just Want to Have Fun (1985)

Synopsis
On her first day at an all-girls Catholic High School in Chicago, shy and reserved Janey Glenn (Sarah Jessica Parker) meets the wild and wacky Lynne Sands (Helen Hunt). Even though her oppressive dad, Col. Glenn (Ed Lauter), won't let her go, Lynne talks her into sneaking out to try out for a spot on the beloved show Dance TV. Janey wows the judges with her gymnastic ability and makes first cuts, conveniently assigned to a cute dance partner: blue-collar bad boy Jeff Malene (Lee H. Montgomery). They compete against the bratty rich girl Natalie Sands (Holly Gagnier), who sabotages them because she wants Jeff and the contest for herself. Janey and Lynne get revenge by inviting punks and street kids to crash her debutante ball. Natalie then resorts to making her wealthy industrialist dad, J.P. Sands (Morgan Woodward), threaten Jeff; If he doesn't let Natalie win, his dad (Biff Yeager) could lose his job at the factory. It all leads up to the live television broadcast of the Dance TV contest, right when Janey's dad races to the studio to stop her. Also starring Shannen Doherty as Jeff's little sister, Maggie. ~ Andrea LeVasseur, All Movie Guide