Continuity mistake: When Quatermain arrives in London, he is greeted by Reed who leads him down some stairs. In the shot where they're going down some spiral stairs, for some reason you see a different actor (who is clean shaven) posing as Reed, going down the stairs holding the umbrella in his right hand. Then in the next shot you see the "original" actor who has a slight goatee and is holding the umbrella in his left hand.
Trivia: Never in Oscar Wilde's story was Dorian Gray invincible, as is depicted in the film. Nor did looking upon his picture kill him. Dorian regularly stood in front of the painting, observing the degradation of his soul. He was only killed when he tried to destroy the picture.
Question: I know that some aspects of the movie were altered from the source materials because of copyright issues and various other reasons (i.e. having Skinner as the Invisible Man instead of Griffith.) Were there any such reasons given for changing the nature of Dorian's portrait from Wilde's novel, or was that just altered to make his death scene more "dramatic?"