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It's interesting that it took Cage so long to find Charlotte but yet found the rest of the clues in so short a time (days). What a coincidence that Cage hit metal 2 inches away from the word "Charlotte" when digging for the ship! The interior of the ship should have been filled with water/ice after all this time "drifting", no matter what the sidekick says about semisolid masses. The treasure room would have been found long ago by engineers, especially considering a subway track was built close enough for them to feel the shaking of the passing trains. There were more but I've forgotten them. I realize this is a "sit back and enjoy" kind of movie, but I couldn't help but wince at some of the flagrant problems in the plot.