The Kick (2011) on Netflix

Plot summary

Mun, a taekwondo master, runs an old gym in Bangkok, and his whole family trains in the art. Each of them brings something of their own to it: his wife through cooking, his son Taeyang through dancing, his daughter Taemi through soccer, and the youngest, Typhoon, through sheer strength, able to break things with his forehead. Mun hopes his children will become coaches and run the gym after him. Taeyang dreams instead of a career as a pop singer, while Taemi is preoccupied with a classmate she secretly likes. When Taeyang stops a gang from stealing a priceless antique kris, the family wins public attention, and the leader of the gang, who escaped the scene, threatens revenge, though nobody knows when or where it will come.