Sam Bacile is an obvious pseudonym. The very earliest web trace is the Y-tube account created on April 4 2012, the "trailer" was posted on July 2, 2012. The 14 min film "trailer" is the only independent evidence that a longer film may exist.
Three names have been associated with the Mohammed film.
Terry Jones, the media-whore pastor from Florida
Morris Sadek (Gergis) - a Coptic agitator with a media relationship to Terry Jones
Steve Klein of San Jacinto/Hemet
Klein has been most available to the media. He has made a recent interview with Jeffrey Goldberg of the Atlantic. http://tinyurl.com/...
Klein updates a Facebook page "Altar or Abolish" and parallel websites. http://www.altarorabolish.com/ http://abolishislam.com/ or https://www.facebook.com/...
Below the fold I will present additional sources and information.