Via Kotaku, an interview on Ain't It Cool News with Peter Jackson talking about the in-conception Halo Movie. From the article: "QUINT: Now, there's no reason on Earth shouldn't easily and faithfully be adapted into a PG-13 movie. However, do you anticipate there being a harder cut considering how gruesome the Flood aspect of the story is? PETER JACKSON: That's interesting... It's something, I must admit, that's not a conversation I've had with anybody yet. It's a conversation that I'm sure will happen. Look, the reality of the budget is that I would imagine the studio are going to be pretty insistent on a PG-13, which, as you say, is certainly not an impossible thing pull off."