Watch out for the foot technique
A group of young students has to stop an evil man from trying to destroy their school. He’s got a deadly foot technique they have to counter. There’s the usual training sequences. A bunch of threats and confrontations. Even a betrayal amongst the students happen. Most importantly the fight scenes are well choreographed and fast paced.
The movie title "5 Pattern Dragon Claws," available on Prime Video, has received an average rating of 4.1 from 19 reviewers. 
It features elements such as IMDb 6.2, 1 h 26 min, 1983 and 16+, and it is priced at $None.

This title falls under the categories of Drama, Adventure and Action. 
The additional details include the following in key-value format :
 {"Audio languages": ["English"], "Subtitles": ["English [CC]"], "Directors": ["Shi-Hyeon Kim"], "Producers": ["Chang-hwa Jeong"], "Starring": ["Dragon Lee", "Jang Lee Hwang", "Jeon Ah Seo"]}

Here is a brief synopsis of the title : The Silver Fox battles untold men with his deadly Thunder Foot technique and rules supreme in the martial arts, until a young fighter develops the Lightning Mantis Strike..