Don't (2007)

Incorporated into Quentin Tarantino and Robert Rodriguez's double-feature, Grindhouse (2007), Edgar Wright's "Don't" is the third fake trailer out of five. Featuring appearances from Nick Frost, Katie Melua, Simon Pegg, and Jason Isaacs among many others, it pays homage to the British horror scene of the 1970s, crammed with tons of clichés. So, if you're thinking of looking behind you, or even blink in a horror movie, don't.