Lady in the Iron Mask [1952] [DVD]

In the 17th century, D'Artagnan, the former captain of Louis XIII's musketeers, is aboard a ship bound for America and bemoans the fact that he is married to a woman he does not love. As he ponders his fate, D'Artagnan remembers how he became embroiled in this predicament: After the king dies, France is thrown into turmoil, and the king's power-hungry brother-in-law, the Duc de Valdac, becomes regent. De Valdac plots to marry Princess Anne to the pliant Philip of Spain and wrest control from the ailing prime minister, Rochard.

Note this print is in black and white and the runtime is 71 minutes, not 78 min, the reason being the framerate is slightly higher because it is in ntsc playing back on a PAL format system.