Steve Neale declares that 'genres are instances of repetition and difference' (Neale 1980, 48). He adds that 'difference is absolutely essential to the economy of genre'.


By this, Neale means that, while a particular genre would stay basically the same, it needs to always be moving forward. For example, in a horror, you always have the creepy none-diegetic music, screaming and blood, but they are always improving, for example, the special effects would be better, everything would look much more realistic.


'Coraline' is a fantasy/horror film. In the title sequences for horror, the conventions you'd expect are dim lighting and the none diegetic music, you'd also expect blood, victims and attackers.