Weird characters
Weirdos, psychos and misfits are usually more interesting than the average Joe.
I think this is why prison movies are often good because you got a whole bunch of "abnormal" people together.
Monsters/creatures
Just because.
And as a kid I was big time into dinosaurs, the ninja turtles and animals in generals. Might have something to do with it.
I still like (and collect) a lof of nature documentaries.
The supernatural/extraterrestrial/unknown
Lost worlds, mythical creatures, ancient evil,... You know.
Unusual and over-the-top stuff
There's more chance you'll get to see this in horror movies than in the let's say "more serious" movies.
An ass demon, a guy with a chainsaw where his hand used to be, a near dead woman getting mouth raped by a baby monster, a spaceblob eating people,...
Dark humour
The devil in me likes to laugh. I find certain acts of evil just hilarious.
Along with the unusual situations.
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