For me, one of the joys of YouTube is using it to track down all the b-grade horror movies of yesteryear... well, of the 1970s anyway. As a child, I owned a number of glossy coffee-table style books on horror cinema - much to my poor mum's concern - filled with stills from ripe-sounding shockers. On listless, rainy Sundays I'd stare at these images and allow my imagination to build elaborate contexts for these film-stills, inventing the stories that might give rise to such lurid vignettes. One such image that held me in its thrall was this bizarre tableau from David Schmoeller's 1979 film Tourist Trap - a doll-like figure holding another decapitated doll-like head. Thirty years or so later, I finally got around to watching Tourist Trap , and while many similar experiences of watching films have ended in disappointment and/or boredom, I can honestly say Tourist Trap was a good deal more disturbing than even the promise of that single image. Don...