The fourth volume in the BFI Flipside's celebrated Short Sharp Shocks series - on an ongoing mission to curate an alternative Brit-screen history of overlooked rarities in deluxe home-entertainment editions - is another eye-opening assemblage of unusual, exceptional, exciting, horrific, eerie and eccentric short subjects - veering from the heyday of the British cinematic supporting programme, to the earliest days of commercial television; and far, far beyond. Short Sharp Shocks Volume 4 features an uncanny cornucopia of ingenious micro-budget shockers, astonishing, award-winning amateur works, televisual twist-in-the-tale weirdness, breathtaking fantasy-film spectacle, blood-spattered rarities, petrifying public information frighteners and evocative avant-garde experimenta - all offering up oodles of atmosphere, and lovingly delivered to you, alongside an enviable assortment of newly-created interviews and extra features, in High Definition.