Five kinds of zombies are shown in the movie: undead crew members of the "San Christobal", other centuries-old zombies, people that were killed between 40 and a few years ago, and finally the ravers that were killed no more than 12 hours ago.
Thirty-two video clips from the original game appear in several parts of the movie. Twenty-six appear during the 10-minute battle in front of the house. The remaining 6 are used as transitions prior to the battle.
One of the girls reading the log book says that the book records the death of the crew, and the Padre turning the boat toward Isla del Morte. If the Padre killed the captain and the crew, who wrote the logs?
After Greg lost Casper in the forest, he gets chased by a bunch of zombies. He hides under a tree, but they discover him again. That's when you can see one of the jumping devices one zombie uses to bash against a tree.
What are the differences between the Theatrical Version and the Director's Cut/Funny Version?
In 2003, House of the Dead, the first video game adaptation of Uwe Boll, who has gotten himself a certain reputation in this area, was released. The film is a mundane zombie flick with a shallow plot and a tendency to be trash. Five years later, Lions Gate has released a Director's Cut version of the film on DVD. The film was made into a comedy with new music, alternative scenes, outtakes and several overlay-commentaries - which is the reason for the subtitle "Funny Version" on the DVD's front cover. A detailed comparison between both versions with pictures can be found here.