Trivia: Numerous references to other Tim Burton films: a) The dress Katrina Anne Van Tassel wears at the end is similar to Beetlejuice's outfit. b) Crane has various sharp scissor-like tools, which is a reference to Johnny Depp's early film "Edward Scissorhands" (1989). c) The scarecrow at the beginning looks exactly like Jack from "The Nightmare Before Christmas" (1994). d) The covered bridge is a lot like the bridge in "Beetlejuice."
Trivia: When Crane starts chopping the Tree of the Dead and he gets blood in his face, this was a joke from the directors as they knew he wasn't expecting the blood. You can see the look of surprise on his face. It was well-known among the cast and crew that Johnny Depp (who played Crane) hated anything being sprayed in his face.
Trivia: I recognized the sword twirl that The Horseman does from somewhere, but couldn't place it. Take a look at the credits - one of the actors who plays The Horseman when he's got no head is Ray Park, ie. Darth Maul from Episode 1, who does exactly the same lightsabre twirl once or twice. And another Star Wars link - recognize one of the village elders? Senator Palpatine/The Emperor, no less.