Oh, and the cliches... girl in the shower/walking around half-naked scene, escalating heartbeat sound effects, the creepy little kid... there must be a checklist or something. And it includes the "Everything's fine now but there's still twenty minutes of movie left so let's kill off some characters" 'twist'.
Did I mention the actors' vaguely pained expressions when looking at some supposedly spectacular visual effect? Hil-arious.