Sing, Sing, Sing - CRANK IT!
This has actually been around for 8 years, but remains very cool - Swing Girls is a comedy about a group of high school girls who decide to form a jazz band. It ranked 8th at the Japanese box office in 2004, and won several Japanese Academy Awards, including 'Most Popular Film. What is remarkable is that the actors performed their own music, including this spectacular rendition of Benny Goodman's "Sing, Sing, Sing" with only five months of training. Crank it and keep practicing!