Although this movie has been praised over the Internet, and I am sure that in later years it will achieve a cult status, I do not think it is that good. 
Yes, it is really good, combining some elements like DC comic style of directing, vampires, werewolves, comedy and horror into a visually great blend that will keep you interested and entertained for the duration of the movie, but it lacks originality. It consists of four stories that happen over a Halloween. Although they are separate stories, the constant is the small creepy kid with a burlap sack over its head. Movie is perfect for those nights when your friends come over, or a as a warm up movie for Halloween. With great production values and decent acting and story it is definitely worth watching, enjoy.
Director: Michael Dougherty
Cast: Dylan Baker, Rochelle Aytes, Quinn Lord, Lauren Lee Smith, Moneca Delain, Tahmoh Penikett
Rating: 
Fun Facts: All the werewolves in this film were created by Tatopoulos Studios, the same studio that brought you the Lycans in the Underworld trilogy.
I watched it 2 times in 2 days.
First time alone and the second time with my friends and my girlfriend… I can just say that it kept me interested whole two times…
I really don’t watch horror movies often, if u can call this a horror movie, because nowadays there are no more good, frightening horror movies that keep you focused on them. Usually I watch horror movies alone and I pause the movie for couple of times – to go to bathroom, to get some snacks, drink ets…
I SAT THROUGHOUT WHOLE TRICK ‘R TREAT! 2 TIMES!
It’s not as frightening as it is interesting, funny and sick.
I really enjoyed it. So should you.
(sorry for my bad english)