NOTE: I HAVE NOT READ THE BOOKS:
Lots of action and humor. The story is good. The acting is well done. Awesome CGI! The main character sees dead people and has some other strange powers. At one point in this movie Odd (the main character) finds a portal to Hell,(but doesn't go in it so there's no demonic stuff in this movie.). This movie has some violence and creepiness. A tiny bit of sexual content, but nothing strong. This movie does have some uses of sh*t. Overall, a fun movie that I would definitely recommend to teens.