How bad is it? Ever see "Gymkata?" That was a better gymnastic film. Really.
Should you see it? No, but there are a few people who love it.
The director of "Purple Rain" recreates that exact plot, only with a gymnast instead of musician, so it tries to cover some "Rocky" territory as well. Mitch Gaylord, who cannot act to save his life, plays the hero, who has family problems (his mom's Michelle Phillips!) and who falls in love with another gymnast (a woman, despite the latent homoeroticism of some of the film) while training for the big meet on his way to the Olympics. There's awful dialog and a string of cliches, synthesizer music, strobe lights substituting for flash bulbs, tons of glycerin "sweat" - especially in the romantic scenes and a gymnast who actually crashes into the judging panel. It looks like one long montage with lighting effects.