Renee Zellweger can only take a role so far. She is cute, the movie is very colorful, and the costumes are nice, but the story and the quality of the movie aren't enough to make it very good. This movie is reminiscent of "Hairspray" starring Ricki Lake. It is a low-budget film with an underdeveloped story. I wouldn't recommend it unless you love Renee Zellweger or Hairspray.
Review of Shake, Rattle and Rock!
