There were a couple of moments where Bruce (if it is Bruce) clearly wasn't watching the ball as it was coming at him but still managed to hit it perfectly. Bruce Lee was absolutely amazing with some of the things he could do, but even people as good as he was have to see what they're doing as opposed to just using the force. So I'm kinda guessing fake too. Plus it seems to be a Japanese commercial, and that kind of makes me suspicious too.
But whether faked or not, whoever made this did a kickass job.
