I love Bloody Mary, while typical, I just think it's such a fun concept to pull off at a Haunt. I already know the ending will be something insanely over the top like going into a mirror realm. I didn't realize Bloody Mary was under copyright, that's interesting. Maybe the rights are specifically the name, but they can use whatever lore they want, including the use of the name in the attraction, just not as the name of the attraction itself. Rights can be tricky like that.