Trivia: The driver that Jerry kills after the man's car hits Charley's car is portrayed by original Fright Night Actor Chris Sarandon. The ending credits have him listed as "Jay Dee", the initials for Chris Sarandon's character Jerry Dandridge.
Trivia: In the scene after Candice dies the guys are at the office having a drink. Watch carefully - when Olivia is leaving she knocks a photo on the floor; this is a photo of her and a friend. Look at the bottom right of that picture and you will see the logo of the roller coaster From Final Destination 3.
Trivia: Towards the beginning of the movie when Emma Roberts and Hayden Panettiere are standing in the hallway next to their lockers at school, next to them is a bust of Henry Winkler's character who played the principal in the first film and was killed.
Trivia: Much of the ending was reshot, including a scene where the alien pilots within the spaceship were witnessed by Kate Lloyd dangling from some sort of tubes; the body of one was replaced post-production by an odd Tetris-like display.
Trivia: Writer Gary J. Tunnicliffe is a massive fan of the "Hellraiser" series and wanted to make a legitimate good sequel to the prior films. He wrote the first draft of the script and was slated to direct. However, due to contractual obligations with another film and the rushed nature of "Revelations" production, he was forced to bow out. Tunnicliffe later learned that much of his script was re-written during filming and that much of his story and dialog had been drastically altered. (Ex. The "found footage" segments were not in his original script, and the structure had been greatly altered.) In a 2018 interview available on YouTube, he openly admitted the movie was terrible, and feels that due to the film's rushed schedule and some questionable choices made by the director and producers, the film greatly suffered. He later went on to write and direct the following film, "Hellraiser: Judgment", which despite receiving generally negative critical reviews, was typically viewed as one of the better sequels in the series.
Trivia: The original draft of the script ended with the actual biblical apocalypse happening. All of church members and police officers heads would begin exploding, save for John Goodman, who would take cover and then see the church leader played by Michael Parks being run through the heart with a sword by an enormous angel. The angel would then turn to Goodman, put it's finger to its lips and whisper "Shhhh..." before the four horsemen of the apocalypse would begin to descend from the sky as the film cut to black. Smith has said that the ending was dropped due to budgetary restrictions and because he wasn't confident he would be able to deliver on such an ambitious sequence.
Trivia: Nine-one-one (written "911") is used exclusively for the emergency telephone number in the U.S. (Nine-eleven might be used more often in England.) In the case of "nine-eleven", a slash is used to show the separation of the numbers (9/11), which then dictates its pronunciation and distinguishes it (date of terrorist attacks) from the emergency 9-1-1 number.