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?
Question: There is a scene where Canton says he believes the creatures were a strange offshoot of the ARCHAEA OTTOIA family. He then describes how big they get based on how deep down they are as well as what they do to their victims. Question is does the Archaea Ottoia really exist? If so is anything Canton said about it true? I tried looking for this creature in the search engine but with no luck.
Chosen answer: According to the DVD commentary, the monsters in the film are a combination of 3 different undersea creatures. All of them are microscopic.
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.
TedStixon