Hallowe'en is about two things: spending an entire month sourcing and assembling the perfect half-frightening, half-sexy outfit ahead of a costume party held on the night itself, and subjecting yourself to a gruesome pre-Hallowe'en treat in the form of a scary movie. And Ethan Hawke's latest effort, Sinister, is the scariest movie of the lot.
 
You know how, when you were a kid, all the ghouls and ghosts and secret deformed twin versions of yourself were stored up in your attic? Yeah, Ethan Hawke didn't get that memo. In Sinister, he plays a true crime novelist called Ellison who, like an idiot, goes up into the attic of a creepy old house he just bought. There, he finds a box of old 8mm prints — the most terrifying of all the film formats — and a bunch of old videos, which he then proceeds to watch. Spoiler alert, guess what: all these films are just insanely scary.

 
And we're not talking just 'jump in your seat' scary. It's not even 'flinch in your seat' scary. Once the lines between the 8mm prints he found in a box and the house he is living in become blurred, Sinister becomes 'wet yourself abruptly and sleep with the lights on for weeks' scary. Plus Ethan Hawke is in it, mainly being scared.

 
If you don't fancy ever having a good night's sleep ever again, Sinister opens on the 5th October, and is the exact kind of film where people sit at the front during the opening weekend filming audience reactions on infrared cameras for their own fun and laughs. So sit near the back, yeah?