If you were one of those who subscribed the official Riot Games YouTube channel then you were part of the effort that helped unlock this video. Give yourself a pat on the back and enjoy the official word and video!
"We asked you to voice your support for League of Legends by subscribing to the Riot Games YouTube channel. Once we achieved 260,000 subscribers, we’d share a second blooper reel from our Season One trailer.
Well, once again, summoners, you have risen to the occasion! Today we reached our goal, and are here to make good on our promise. Steel yourselves, for the Blooper Reel that you are about to see can only be described through fits of uncontrollable (and very possibly maniacal) laughter."