The key to humor in a horror film is that it has to be...

The key to humor in a horror film is that it has to be organic. It has to be organic to the situation.... if you know you're doing anything to get a laugh, or anything to scare people - that's great. But to try to get people to do both - to try to get people to scream in horror, and a moment later burst out laughing - I think that's a neater trick.