I watched this last night. The movie theater scene had a continuity error. The first person they interviewed after letting the viewers out into the lobby said something like "it was the funniest thing I've ever scene", but that same person was scene awake during the hypnosis. He was a young male, brown hair, glasses, mid 20's, blue hoodie sweatshirt.
Why would one of the 15% that did not get hypnotized say 'it was funny'. I suppose he never said the movie was funny and was referring to people being hypnotized as funny.