YouTube Bruce Lee Table Tennis
It was an ad for Nokia N96 phone released in 2008 (it was Bruce's 30th death anniversary). Bruce Lee look alike was used to make the video and the game of table tennis played there is also not real. The actions were first filmed and later synced with sound from an actual table tennis game.
The video that became viral had the Nokia phone sections edited out. The original video of the ad:
The video above shows the entire advertisement for the Nokia phone, but the ad itself does not say anything about the genuineness of Bruce Lee being involved in it.
So I did a little more digging and found that the ad agency who made that video, J. Walter Thompson (Beijing office), won an award for it in 2009 at a ceremony in London. Here's the link to that:
The Chief Creative Officer involved in the ad has given an interview post the award where they talk about the idea behind it and how they planned to make it go viral as part of the ad strategy. You can read the full interview here:
Hats off to the guys behind this idea for making an ad of almost a minute long with nothing about the product involved and still being amazingly successful. Of course, the real credit goes to the legendary Bruce Lee, because this discussion would not be happening at all if the actor in the ad was portraying anyone else.