El puño del dragón

Allegedly filmed in between Jackie Chan's two Seasonal Productions movies, Snake in the Eagle's Shadow (1978) and Drunken Master (1978), but not released until after the success of the latter Seasonal Production due to Lo Wei's financial constraints. This movie was filmed as a Mandarin-language movie, yet the focus on the dubbing switched to Cantonese, due to the success of the Cantonese-language Seasonal movies, and other studios (i.e. Golden Harvest) beginning to lean into Cantonese as well. This is why most releases feature Cantonese as the only Chinese dialect option, despite the fact that the harder-to-find Mandarin track syncs up with most of the actors (save for the South Korean cast members) far more accurately.

The Japanese theatrical cut is only about 89 minutes (compared to the uncut 96 minutes of the Hong Kong cut), but features a primarily unique music track. While it uses some of the same music cues as the Hong Kong cut, most of the music is produced especially for this edition, including two vocal tracks: "Dragon Fist" and "Do or Die". Aside from this, the opening fight montage with Hsiu Hsia has been replaced with footage of Jackie Chan's penultimate fight from the finale, while the opening credits play over set to the aforementioned "Dragon Fist" theme. As of now, this version is only available on a late 2014 Japanese blu-ray (the earlier Japanese blu-ray only features the alternate opening as an extra.)