Kevin J. O'Connor added the line where he asks if a person can "suddenly get asthma "
Kevin O'Connor wore pads for the scene where the mercenaries take turns hitting and kicking him, but at the end of the shooting day he was covered in bruises. "I felt so horrible," said Stephen Sommers.
Sommers is grateful for people buying the Blu-ray as watching it edited on TV comes with nearly thirty minutes trimmed to allow for commercials. "It's good for my pocketbook, but it makes me cry sometimes."
The film originally opened with a much bigger underwater sequence that was still included well into post-production. But special-effects delays cost nearly a year of extra time, and the sequence was dropped. "The original visual effects team couldn't figure out the animation," so they eventually brought ILM aboard. What should have been the first big monster movie hitting theaters in years ended up riding a wave of smaller films like Anaconda, Mimic and The Relic.
This film went over a year in post-production because it took a while to figure out how to do the various special effects for the monsters.