In the past, it was extremely common to see characters (especially villains) in Chinese wuxia novels and movies strive to become the world number one fighter.  一個人的武林 (Kung Fu Jungle) (Blu-ray release 2014-12-23), a Hong Kong kung fu movie, manages to find a way to apply this concept to the modern world and mixes it with police investigation.  It presents multiple styles of spectacular kung fu, and backs its up with a fast paced and mostly reasonable plot.  Other than The Grandmaster (2013), this is the best kung fu movie since Ip Man (2008).