Slow motion lightning video

Wow, this has to be the best high speed / slow motion video I have ever seen of lightning. I originally found this on gizmodo.com, but have found it many times on youtube, and many of those trace it to many other sites that show the latest "cool" video. I'm looking to find the origin, to find who shot this video, as I would like to give them props. A few out there claim it may be fake, but it looks plenty genuine to me.