A new genre of movie features extreme violence and gore. “The Big Disturbing Set-Piece Scene Of Violence has become its very own raison d’être, irrespective of its place in any supposed narrative order. It’s the one scene that will have them running for the exits, the one that will kick-start the controversy, and the one that will ultimately immortalise the movie. ‘We’ve reached a point where there is excessive pressure to show us what we haven’t seen before, with or without – but increasingly, without – dramatic or narrative support’.” What’s behind it?