Screening are something normal,yes, but there are rules and protocols.
FOX showed the movie to some unusual test audience, and now the whole audience (general audience)
know every bit of the movie. Dont tell me its not like that because it is. I could make a video explaining the whole movie before its official release and almost critical number of alien fans and overall audience will most probably see that video If post it on Youtube. Thats not good at all. I could slowly start to prepare my materiel for Covenant analysis. We know about Das Rheingold from the beginning of the movie, for gods sake we even know which paintings are hanging in that white room from the prologue scene. We know what happened to Shaw, to the Engineers, we know the end... Only thing we do not know is - the premise of PROMETHEUS 3.