I'm not a movie snob, I enjoy trash cinema as much as I enjoy intelligent cinema
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Snobbery has got nothing to do with it. For example I eagerly anticipated and quite enjoyed the first Transformers.
But some movies are just painful to watch.
Have you seen Twilight: New Moon? I was forced into watching it in a cinema and after watching it for about 10 minutes I tried to cut my jugular with a soft drink cup. It's that bad!
The aliens in Aliens are scary.
I had nightmares. Really did.
I wanted to address this common criticism that seems to sometimes border on
denialism.
Out of curiosity, are you referring to environmentalism in its entirety or specifically issues regarding AGW/Climate change?
You are not implying (via the link you provided) that somebody who is sceptical about AGW is akin to an AGW denier (or even 9/11, 7/7, Holocaust denier) are you?