Amazon announced a 13-day Scream Factory Sale that runs until Halloween, and it offers some of the best horror movie box sets and stand-alone movies out there, with a few at the lowest prices seen this year. Offering the best from Shout! Studio's sub-label, the sale is seemingly massive, currently standing at 11 pages of movies on sale, so it's a great time to grab a pile at a discount for any horror fan's autumn or Halloween watch pile.