This is truely top class movie and I really love it. I don't watch too many Horror movies, but this one was amazing. If a movie can keep me focused for the full movie time, that's really great. It wasn't easy to leave the cinema, when I saw it first time. What determines the phenomenon of this movie? It's realism, taking care of psychological probability?. The Quatermass Xperiment is the best choice for an evening with netflix.