Since reading the news story about Disney and Lucasfilm granting a terminally ill Star Wars fan's wish to see the New Star Wars movie before he was taken by cancer (Good guys Disney and Lucasfilm!); I have been curious as to what the legal situation would have been surrounding watching such a closely guarded and long-awaited storyline before general release. Would he be contractually (or otherwise) obliged to keep all plotpoints to himself? Would the fact that he was terminally ill and not a film critic mean that this legal situation would differ from that which binds critics who see films before general release (assuming that critics are bound in any way)?
I must clarify I do not have a great knowledge of law so I'm not looking for fine detail specifics, but a layman explanation would be very interesting.