Factual error: The machine guns supposedly have a "1,000 round capacity", but the size of the clips used in the guns are obviously nowhere big enough to hold 1,000 rounds.
Deep Rising (1998)
1 factual error - chronological order
Directed by: Stephen Sommers
Starring: Famke Janssen, Treat Williams, Anthony Heald, Kevin J. O'Connor
Continuity mistake: In the end of the movie, it is raining in all of the shots, except for a single shot after the heroes jump out of the exploding ship, immediately after a shot where it is raining.
Finnegan: Like a fine wine, I'm aging gracefully, thank you.
Mason: Like a fine wine my ass. You look more like a keg of beer to me.
Trivia: The first of director Stephen Sommers' films to co-star Kevin J. O'Connor. Sommers and O'Connor became friends, and Sommers has cast him repeatedly, giving him supporting roles in the films "The Mummy", "Van Helsing" and "G.I. Joe: The Rise of Cobra."
Question: Finnegan put only one torpedo through the hole in the side of his boat. Would only one be enough to destroy the whole cruise ship?
Answer: According to some good old Google Fu, a single torpedo hit could absolutely destroy and sink a cruise ship since they're not as fortified as a warship would be. They're meant to carry passengers, not go to war. Granted, it probably wouldn't be quite as dramatic an explosion, but you could also argue that any other explosives on Finnegan's ship, plus the cruise ship's fuel, could have been ignited in the blast. You also have to factor in that the ship was already heavily damaged from the monsters attacking and was in a more fragile state than it would otherwise be.
Suggested correction: The bullets being fired are .223 rounds, easily allowing for a 1000 round magazine.
Nope. Physically impossible.