During the opening credits, we see the animated sails of a windmill, which, with each turn, begin to reveal, and finally become, a sketch of the face of Don Quixote. The camera moves in for an extreme closeup of the facial features, which, as the camera gets close, reveal themselves to be a giant prop in an outdoor stage presentation during a festival. As the opening credits end, the sketch of that prop dissolves into the real item.
Practically all of the actors in the film, with the exception of those who play the Captain of the Guard and the soldiers of the Spanish Inquisition respectively, play dual or triple roles, but only five of them are actually listed in the credits as having done so. All of the other actors are listed as if they only played one role in the film, as the prisoners generally aren't given names.