http://www.rottentomatoes.com/m/whiplash_2014/

Thoroughly enjoyed this movie recently. Boy could that kid play drums – practise, practise and more practise makes perfect.  10,000 hours or more should make an elite musician, then again “There’s no magic number for becoming a world-beater, says science writer David Bradley, just ask the psychologist whose research formed the basis of the popular idea.”

http://www.bbc.com/future/story/20121114-gladwells-10000-hour-rule-myth

Without giving too much about the film away, I will just point out that the main character was heavily influenced by the genius drummer Buddy Rich.  Watch the real man in action here: