Revealing mistakes: When Iñigo arrives at the beach after being freed from the galleys, a really tall modern building can be seen at the left part of the screen.
Continuity: During the white flag scene at Rocroi, the corpses around the Spanish soldiers move between takes.
Revealing mistakes: When the group walks back from their white flag meeting with the French commander at the battle of Rocroi, the movie focuses on how few Spanish soldiers are left. In the foreground a few casualties can be seen. On the left a man in brown clothes lying on his back, his spear in his right hand. A little to the right in this same shot exactly the same casualty in exactly the same pose can be seen, except for a few details regarding the shadows on the ground.