Kung Fu Hustle (2004)

In the film "Kung Fu Hustle," a young man named Sing aspires to become part of the notorious Axe Gang, but ends up stirring trouble in a slum called Pig Sty Alley. The residents, who turn out to be skilled martial artists, stand up to the gang and reveal their true abilities. As the conflict escalates, Sing must choose between his aspirations and doing what is right.