Hi, Gaijin! Hope all is well.
Mantis Under Falcon Claws isn't an alternate title for that movie you mentioned. Mantis Under Falcon Claws is a different movie.
I don't think we'll ever find the Big5 title for Mantis Under Falcon Claws, because it was meant for distribution in the west, and not in Hong Kong.
Chai Kai stars in this as the old master, and Hyeon Kil Su, the samurai from Shaolin Drunk Monk(1983), plays the villain. The credits from that movie are bogus, as they are just pseudonyms Godfrey Ho used. This may be a Taiwanese Korean coproduction shot in Korea, because of Chai Kai being in this movie, and he wouldn't just go to Korea to shoot a movie unless it was some sort of Taiwanese coproduction. Some parts of the choreography looks as if it shot the Taiwanese way, nice shot acrobatic gimmicks, beautiful flips flowing choreography, editing, ect. I believe this is a Taiwanese Korean coproduction, because Chai Kai wouldn't be in a Korean movie without a reason. But, the movie wasn't released in Taiwan, not that I know of.
I have the Korean documentation for the movie:
http://www.koreafilm.or.kr/english/db_d ... taid=03616
Thanks
Frank