Jennifer Beals' dancing in the film was performed by a body double. Her main dance double is the French actress Marine Jahan, while the breakdancing that Alex performs in the audition sequence at the end of the film was doubled by the male dancer Crazy Legs. The shot of Alex diving through the air in slow motion during the audition sequence was performed by Sharon Shapiro, who was a professional gymnast.
Jennifer Beals admits to not ever being a dancer and even turned down appearing on Dancing With the Stars.
Beals turned down an offer to appear on Dancing with the Stars, saying: "I am not a dancer. They asked me and I said 'no.' You could back up a truck to my door filled with cash and I wouldn't do it."
Is there any evidence that filmmakers were intending on using body doubles for all of the dance scenes in the film before the lead female role was cast? If not, why not just cast another actress for the female lead who actually could dance?