Making film trilogies is a tricky business. No matter how much promise your first film might show, replicating that success twice very rarely works out, whether it’s a planned trilogy or just a film with two sequels. Even The Godfather came across problems when it came to Part III, even if it’s nowhere near as disappointing as popular opinion likes to paint it. So what hope for a trilogy of horror films, that genre where so little effort seems to get put in when it comes to sequels? And that’s even before a curse comes along…