To prove this wrong for starters? Why haven't they released it in full not edited clips?
In 1967 Vic Moore appeared at the Long Beach International Karate Championships in Long Beach, California and participated in a martial arts speed drill against Jeet Kun Do founder and movie star, Bruce Lee. The point of the speed drill challenge was to stop Bruce Lee’s famous unstoppable punch. According to Vic Moore and grandmaster Steve Muhammad, Bruce Lee told Moore that he was going to throw a straight punch to the body, and all he had to do was to try to block it. Lee took several steps back and asked if Moore was ready, when Moore nodded in affirmation, Lee glided towards him until he was within striking range. He then threw a straight punch directly at Moore's body, Moore did block the punch. The crowd erupted. He threw another and Moore did block it as well. The third, Bruce Lee threw to Moore's face, and did come within striking distance and Victor glanced off. Victor laughed. Then Victor said, “Ok, you block my punch.” Bruce couldn’t stop it, missed two, the third he blocked. He shook Mr.Lee's hand out of respect which is also seen. Vic Moore and Bruce never had a fight, only a speed test drill which Vic Moore won. It was said that Bruce told Moore he was the fastest American he had ever seen.
To be honest the punch is stopping a good distance away from his head but we can all see how fast Bruce was. There is no argument there.