Bloodsport opened in 1988 as a no‑frills, bleached‑neon martial‑arts picture touting itself as “based on a true story” — the real‑life exploits of Captain Frank Dux and his victory in the underground Kumite. The origin of that claim was a 1980 Black Belt magazine profile of Dux, and producers leaned hard on the narrative as a selling point. Dux was brought on as a technical advisor and even choreographed sequences alongside Hong Kong stuntman Lee Ka‑ting; production began on location in Hong Kong on October 17, 1986, and Cannon Films released the picture on February 26, 1988. The marketing myth was tidy: a mysterious full‑contact tournament, a secretive lineage, a 1975 championship — colorful copy that helped the low‑budget picture (reportedly made for roughly $1.5–2.3 million) become Cannon’s surprise cash cow, grossing some $50 million worldwide and launching Jean‑Claude Van Damme as an international star.
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