"What you're watching right now is a diary I've kept to explain how I ended up living in this online world... and why I left my straight world life... behind."
So begins Part I in a series of videos that you must watch start watching now. Evocative, vivid, and beautifully produced, it purports to reveal the story of an individual who disappeared from his California home, only to appear in-world, in avatar form. Whatever it is, it's most certainly an irrefutable testament to SL's maturity as a filmmaker's medium. See it here, and marvel.
Update, March 6: In Comments, the video's producer points to the high-res version of the movie.