I had a freaky dream last night

I was in an old cinema with my old class (the class when I was 13/14 year old) somewere in Finland/norway or somewere up there. we were watching the movie the Exorcist in the oldest room they had, the rest was newly build around that movieroom-thing. well I was sitting in in the back with most off my classmates 2 off them sat in the front row. I found it creepy cause I don't like demon type movies and I had a very bad feeling. when the movie started I thought I saw things moving on the seeling. after about 10 minutes I heard laughing on the left side and begged my 2 friends next to me to go outside, well when they went outside with me I explained and they agreed we should get outta there. we went back in and the lights were starting to go on and off. when e got everyone off the class out I ran back to get the 2 in front out. when I explained and let them listen to the soft laughing left of the seeling they rushed with me outside but the door was stuck. after then pushing and us pulling on the door it broke open. outside they were looking for ppl who worked there but the whole cinema was empty. we desided to get back in and get the rest off the ppl out, when we tried to get back in the door was locked again and the door felt like it was on fire. we all rushed outside the cinema, when we were out we heard a very big bang and just started running to the nearest town. we told the teachers who called the police, a lil while later we rushed out to stay somewere else (weird enough) we ended in San Fransisco... there we heard that the ppl still in that cinema were gone... not only the door but the while room was so hot that most choked or burned alive without even 1 spark off fire. the gouverment burned the cinema down and then burned the ground it stood on.. now its a place no one is alloud to go. then things got very cloudy and I woke up