Factual error: When M tells Allan Quatermain that he and his team have four days to go from London to Venice, he answers that this is impossible, and captain Nemo replies that it will be possible thanks to his science-fictional devices. Actually, on late 19th century railways, this trip would have taken less than two days. For example, the Peninsular Express departed every Friday afternoon from London, and it arrived at Brindisi, a considerably more distant town in southern Italy, on Sunday afternoon. (00:16:39)
Other mistake: When Quatermain impales the henchman at the beginning of the film, the rhino is hung high on the wall and the tip is much higher than the spot the man hits, Quatermain would have to have lifted the man higher than he does to achieve this.
Continuity mistake: From the meeting with M to Dorian Grey's place, the amount of makeup showing Skinner's head varies too quickly to be real.
Factual error: In Kenya, Alan Quatermain pushes a guy back with a table and impales him on a horn on the wall. The table hides the wound, but the horn punches through. If this guy was impaled on that horn, it would have some blood on it. However, it's just as totally clean as it was before.
Answer: In The Picture of Dorian Gray, Dorian has a painting that reflects himself. But while the painting grows older, Dorian remains young - the opposite of real life. In the movie, another benefit of this was that Dorian remained impervious to harm while the painting was preserved. When he finally looks at it, the pattern reverses and his body finally reflects the reality depicted by the painting, causing him to age past his own death very quickly. The other characters are from Dracula (Mina Harker), King Solomon's Mines (Allan Quatermain), The Invisible Man (Skinner, in concept if not in person), 20,000 Leagues Under the Sea (Captain Nemo), The Adventures of Tom Sawyer (Tom Sawyer), and The Strange Case of Dr. Jekyll and Mr. Hyde (Jekyll/Hyde). Some other characters also reflect classic literature, but these are the primaries.
Phoenix