Oh yes was that the one with the Scottish paranormal unit. I met a guy who had a minor role in that.
I remmber the one with the sirens (well its closest analogy) my wife and her friend were watching it with me, there was a bit where they spent minutes ratcheting up the tension showing the doors and windows were locked. Then set up a video camera, and in the most amazingly simple shot had a girl rise from (quite obviously a crouch) and walk off camera. My wife and her friend nearly screamed the place down. Rather effective shot!