The style of the original book version of John Dies at the End has been referred to as "H.P. Lovecraft meets Douglas Adams," and it is every bit as disturbing and funny as that would imply. The movie strips down the events of the book to keep the plot moving along, but loses none of the madcap humor, nor the sense conveyed by the characters of coping with a world that is spinning horribly out of control. Even if you're not generally a horror fan, if you can tolerate just a _bit_ of gore and gross-out humor, this film is highly recommended. It's unlike anything else you've seen.
The lead actors are relatively new faces, but judging by this film they have great careers ahead of them. Some well-known faces (led by the wonderful Paul Giamatti, along with the great character actor Clancy Brown, whom you'll probably recognize without being able to figure out from where) support their performances beautifully.
Pros well paced, great story, great actors, unique