This explains the film’s disjointed narrative. The first hour is a coherent, dark origin story. The final 20 minutes become abstract, confusing, and surreal. The infamous "ending" is actually a tacked-on cliffhanger to set up Ong-Bak 3 (which would resolve the story a year later). Despite the chaos, the action sequences Panna completed are some of the most violent ever filmed in Southeast Asia.
If you want a fun ride, watch the original. If you want to see a man push the human body to its absolute limit while screaming into the void, watch . ong-bak 2