Maybe Paramount themselves took it down because it is a fake or someone is leaking information that they are not suppose to. Someone needs authorization to post such material on the IMDB, unless there is someone hacking into the sites servers. The video had been up for almost 5 hours since I spotted it. Only Chris Pine and Zachary Quinto are the only two casted so far. However their signing for a 4th Trek movie had been reported by multiple sources.