1, need to rewatch it though

It's Alive

zero

Apollo 18

Once and never again

Trollhunter

Zero.

Sharktopus.

Once, you should see Trollhunter. It's really good.

Let The Right One In

Zero.

Thanks for the Trollhunter recommendation, that does look very good. I thought perhaps a techno-suspense thriller about an internet moderator who dons a cape in the battle for relevant and non-confrontational posting, but no!

The Ghoul (1975)

Zero

Halloween (the original)

Too many to count! :D

Subspecies

Never - SHAME ON ME!

Curse of Frankenstein

Probably about 30 times

Dawn of the Dead (original)