SON OF MONTE CRISTO (1940) - Used DVD

Stars Louis Hayward, Joan Bennett, and George Sanders. The Count has become romantically enamored of Zona and undertakes to help her, visiting the Grand Duchy, where he falls in with the underground resistance movement of Lichtenburg. He befriends the loyal Lt. Dorner (Clayton Moore) of the palace guard, who knows a variety of secret passages leading from the Grand Ducal Palace to the catacombs of the Grand Duchy.