AThe situation with this movie is quite complex.
The movie was finished back in 1973 as The Cub Tiger From Kwang Tung and was released on DVD in Japan, Canada and Britain. Six years later the movie was re-cut and re-titled to Master With Cracked Fingers. It uses a little less than half the original footage, was ramped up with own plot and many new scenes. Designed to be more humorous as Jackie gained fame with Kung-Fu-comedies Drunken Master and Snake in the Eagle's Shadow shortly before in Asia. Since this is not enough there are three different cuts available, that are based on the 1979 re-cut:Asian Version: The Asian version differs mostly in a completely altered final fight compared to all the other versions resp. the internationally released ones.English Version: The only main difference is the final fight, also there is of course an English dubbing.International Version: This one was probably released the most internationally and contains a different English dubbing as the version mentioned before. Contrary to the "English Version", this one is missing some plot scenes in the middle of the film.A detailed comparison between the 1973 and 1979 versions with pictures can be found here, whereas one can find a comparison between the "Asian Version" and the "English Version" over here and last but not least an comparison between the "English Version" and the "International Version" here.