Welcome to Cheat Sheet, where we give you all the intel you need about iconic shows and films. In honour of its 30th anniversary and its new addition, this time we're looking at the meta slasher series Scream. “What’s your favourite scary movie?” It's a question that launched an entire series, and 30 years later many horror fans would say in earnest that at least one edition in the Scream franchise is their favourite fright-fest. Since Ghostface slashed through our screens three decades ago, Kevin Williamson's series — which has spawned seven movies, three seasons of television and a litany...