It was the movie "Crouching Tiger, Hidden Dragon". After that, all Jet Li films, and any other Asian martial arts movie I could find, for at least a dozen years. Then, in 2016, Netflix's algorithm decided to suggest a Kdrama, "Noble, My Love" (because apparently, Asian action films and Korean rom-coms--exact same thing.) Since then, hundreds of Kdramas, Cdramas, lakorns, and the occasional Jdrama . . . .