There is no nudity to speak of. And no, a quick glimpse of a breast on a video screen does not count. The gore is kept to an absolute minimum. I got the feeling they were actually hoping for the current holy grail of movie making, the PG-13 rating. The camera always cuts away at the last second so as to avoid being gross.
Several deaths occur off screen entirely.
The only reason we know that some characters were killed is that the corpse turns up somewhere. The dialog is on a level appropriate from ten year olds which was probably the exact mentality this movie is aimed at. Which makes no sense since those kids aren't supposed to be watching R rated movies. Wink, wink, nudge, nudge. What's most amazing, or pathetic, take your pick, is that it took four writers to adapt this from a novel.