I have learned this afternoon that 100 years ago, the Jehovah's Witnesses released an 8-hour movie which successfully synchronized sound to image. The name of the production was The Photo-drama of Creation. Supposedly 9 million people viewed it. (The JW's had confidently predicted that the world would end in 1914 - the first of many failed calculations - and I can only imagine that interest in the Apocalypse. ambitious piece of film-making, combined with it being seen by millions, left me wondering why this movie is not talked about or even listed in standard or popular accounts of silent film history?
I did not find the right solution from the Internet.
References: - http://www.nitrateville.com/viewtopic.php?f=3&t=18887
Online Video Production Service