Factual error: When D.J. is attacked by Dr. Weir, he is grabbed by the throat and is squeezed until his windpipe is broken, shown by the way he was breathing (or struggling to). When Weir seizes him again and throws him against a support beam, he screams in a way impossible for someone who just had his windpipe crushed.
Event Horizon (1997)
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Directed by: Paul W.S. Anderson
Starring: Laurence Fishburne, Sam Neill, Jason Isaacs, Joely Richardson, Kathleen Quinlan
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Suggested correction: Dr. Weir doesn't crush DJ's throat at all. The noises he makes are simply choking noises because he is being picked up by his throat, there isn't even anything in the scene to imply his throat is being crushed, which in reality requires considerably more effort than most people believe.
Dr. Weir: What was made public about the Event Horizon - that she was a deep space research vessel, that her reactor went critical, and that the ship blew up - none of that is true. The Event Horizon is the culmination of a secret government project to create a spacecraft capable of faster-than-light flight.
Smith: Uhm, excuse me. See, you can't actually do that.
Trivia: The Event Horizon was designed to have features subtly reminiscent of the famous Notre-Dame Cathedral.
Question: Why did the Event Horizon choose to come back after seven years? In fact, why come back at all?
Chosen answer: The movie never explicitly says; but science is as yet unsure what happens to a given piece of matter once it crosses a black hole's event horizon, so who knows? The ship could have been thrown seven years forward in time, or far enough away that it took seven years for it to drift close to Neptune. Pick any explanation you like.
The theory that the film is a stealth prequel to the 'Warhammer 40,000' universe has been confirmed by one of the writers, who was a big fan of 40K and said that the setting influenced his writing "either consciously or subconsciously" – because Games Workshop is litigious. But since the Horizon entered into the Warp, time there flows extremely differently from time in real space; while it was seven years for people in real space, it could have been seconds, or thousands of years, for the ship.
Answer: With the recent Event Horizon prequel comic, it is established that Event Horizon is not in the Warhammer universe and there is a king of hell in the film. His name is Paimon.