 The first film adaptation of Dumas' novel to allow for the lasting triumph of the good twin over the evil twin was Douglas Fairbanks' 1929 version of the tale, "The Iron Mask" (although in this case the good twin was the one already on the throne, reared under the tutelage of D'Artagnan, and it was he who had to be rescued when the evil twin was put onto the throne).The 1939 version flips this around so that the evil twin, Louis, sits on the throne and the good twin, Phillipe, is raised by D'Artagnan and must eventually win the throne.The staging of several other scenes are borrowed from the 1929 version, most importantly the ending.