Trivia: Pneumatic palm sanders were used as hatch door switches for the gravity drive room and the access-way leading to it. Do a Google image search for "Pneumatic Palm Sander" to see examples of the tool. It's a vintage or classic style that's used in the film. (00:26:45)
Trivia: Early on in the movie, there is a shot of the space station above the Earth, which pulls back further and further to show the full structure. Although this shot lasts for just 45 seconds, it took 10 weeks to achieve and used almost a third of the special effects budget, around $12m.
Trivia: The Event Horizon was designed to have features subtly reminiscent of the famous Notre-Dame Cathedral.