I'm a hugh Hitchcock fan, but I see his body of work as sophisticated suspense not the jump outta your chair scare. His films aren't the kind you need to hold your hands to your face sneaking a peek every now and then.
Grease. Just totally scared the shit out of me when I saw some people liked it and it became a hit. Any Adam Sandler movie, man that shit is odd and scary, how he went from saturday night live to making kids movies, OMG that is scary.