By: Addison Wylie I remember describing Paranormal Activity 3 as an innovative horror film.  I remember excitingly telling friends, family, and co-workers about its cunning use of a camera propped on an oscillating fan engine.  The thought of this fearsome manoeuvre making everyone in my packed theatre squirm with anticipation was a memory for the books. With this “final” chapter in the Paranormal Activity series, I sat in a theatre full of unimpressed fans, and…