As did the Wizard of Westwood, John Wooden. (I highly recommend his book "They Call Me Coach").
Yep, good fundamental basketball is fast becoming a lost art.
Right. I saw several old shows many years ago that had clips of his practices in them. He did the same things like Hackman did in the movie. The anti-dunk rule was what actually made Jabbar learn the sky hook. They could not pack the middle so much on him after he got that shot down. He could hit it as well from 6-10 feet as someone shoot the normal jump shot way. He had that shot down cold. No one else since has shot it like he did.