Continuity mistake: After mowing down all the Immortals during the Sanctuary scene, one Watcher tells another to take their heads because they might be Immortals. You see the Watcher to the left side of the screen and a robed figure to his left about four feet away drawing his sword. Suddenly, that same robed figure is now to the Watcher right side and about two feet away.
Trivia: Not a mistake but a little bit of humor in the movie...in one of the flashbacks when they save the women in the carriage from being robbed the long blonde haired man is a professional wrestler that goes by the name of "Edge" from WWF. There is a line in the movie that says, "You seem to have lost your edge."
Question: I saw various scenes in the preview of the movie that do not appear in the film itself. Some include Kell being cut in half, and then both halves regenerating into two different Kells. Another was Kell blowing on some floating globe that explodes with the image of his face. This made "Endgame" look like the third film where the villain was the illusionist Kane, but when I saw the movie, these scenes were taken out and the villain had no such powers. What happened to these scenes? What were they about? And are they available anywhere in any earlier cuts of the film? I could not find them in the early cut feature on the DVD...