In an email posted on the Gadgeteer tech blog, the man says his Glass was turned off but he was still wearing the high tech eyewear because they were prescription lenses he needed to watch the movie. He says about an hour into the film, he was yanked from the theater, taken into a room and repeatedly asked why he was recording the movie.
The man says he was interrogated for 3.5 hours before he was able to convince the federal agents from the Department of Homeland Security to check his Glass to see that he wasn't recording anything.
The theater gave him four free tickets for his trouble.