How many thought this was real footage??

So my brother was watching this on Netflix the other day and I started watching about halfway..I was so upset because I actually thought this whole movie was real. And I kept thinking "wow they can't show the shootings can they??" and then when the massacre scene happened I freaked out thinking it was the real footage....until I saw the claim at the end that said it was fictional and came on imdb and realized it was fake!! Wow the last part of this film is probably the most realistic killing scene I've ever seen. And I'm not the squeamish type either but that scene was downright disturbing.

So yeah I feel dumb now. How many actually thought this was real too? Lol