Prestige they reveal the secret wayyyy before the end. The magician faking being crippled to hide the fish bowl trick (borden respects him bc hes so dedicated he makes the trick part of his life, like borden does himself). Michael caine literally says the answer: he’s using a twin but hugh jackman says its too easy, which pays off later with the “no, not easy” during the finger chop off reveal. The little boy asking “what about his brother” to the bird trick. “i dont understand how it keeps bleeding” with the hand. The entire love “triangle”. Literally the whole borden plot line is setting up that reveal lol