So, yeah. As the title says, I'm looking for this movie where a giant ship, like a cruise ship or big cargo ship, is taken over by this great big parasitic lifeform. It basically ends up being all over the ship, but inside the walls, sometimes spitting out these big tentacles to catch the people left alive. Not sure how many characters there are, I assume a big group that steadily dwindles to a few. I seem to remember a scene where they come upon a feeding chamber of sorts, filled with gory skeltons everywhere, but that may be from another movie that I'm confusing it with. Hope this information is enough, it's been at least 10 years since I saw it at a friend's house, the details are a bit fuzzy.