71. Paranormal Activity (2009)
Director: Oren Peli
Stars: Katie Featherston, Micah Sloat
You know what's really scary about Paranormal Activity? Anyone of us could've made it in our own homes, with any store-bought video camera. Well, assuming you' ve got the same degrees of talent and vision that first-time filmmaker Oren Peli had when he shot this reported $15,000 found-footage haunted house (or is it?) flick and mined genuinely goose-bumpy scares from nothing more than noises and tightrope pacing.
That Paranormal Activity raked in $193 million at the box office, has spawned two successful sequels (with another due out in October), and dethroned the Saw franchise to become Hollywood's new October sure thing only add to Peli's do-it-yourself wizardry. OK, so maybe we couldn't do all of that.