so many details missing. back in the day the movies were filmed then dubbed in the studio for the vocals. this allowed start-to-finish of movies in weeks, not months. this eventually allowed mixing the various dialects and foreign languages like English. today the better actors speak Cantonese, mandarin, English and others. no translation, dubbing required. they did their own stunts. no body doubles, production insurance, no CGI, no cartoon swaps, etc many of the actors are from a range of KF disciplines. some were trained by their opera companies, others are national Chinese champions. others are ballet trained. Shaw brothers operated like the old studios. you're under contract and you get paid what we pay you. their studios were on their way out to Clearwater bay road. back in the day there was only romantic movies (the ending was hand-in-hand walking into a setting sun) or revenge movies. the ultimate movie was Bruce Lee's Enter the Dragon. note bad guys in one color and good guys in the other. See young Jackie Chan in the dungeon scene. top evil man with the arched eyebrows (HINT: this is evil), Sammo in the opening scene sparring with Bruce. and Bruce blurring even at 24fps. Jim Kelly was international middle weight karate champion. compare the speeds. Saxon had a black belt. and the most interesting fact is the Americanization of the title. in Chinese it roughly translates as Mighty Dragon crosses the Abyss (incredible title) - there's a Mighty Dragon hotel in Beijing. enjoy the music and now the film.