If I ever become a film-maker...
... Here's a few things I will not use in my films because I am of sound mind.
1. 10 minutes in, show a very obvious alien thingy on the roof, ruining all suspense of what the heck is out there in the night.
2. I will not write a genuinely intriguing and well-plotted-out suspense only to throw it all away in the last 10 minutes.
3. I will not steal from other movies with the idea of crazy bald monsters out to kill humans.
4. Squelching noises would be out. Whatever those monsters were, I'm pretty sure just by walking that they would not crack and squelch and snap. Also, I would cut down on little sound effects. A tiny little spider running across a kitchen-top does not require heavy thumping footsteps as portrayed in this movie. Why not use giant wind gust FX when Kevin Costner blinks, at this rate?
But that's just me. I guess nobody left in Hollywood really cares about legitimate horror any more. Oh well.
CDEGFEDCC. (Shhh!)