Continuity mistake: During the archery constest, in one scene Prince John has a ring on his right paw with no jewel, then all of a sudden the jewel appears. a few scenes later he has three rings on that paw, and later he has no rings at all.
Continuity mistake: At one point D'Artagnan reaches the Duke of Buckingham, who is on a hunt. He has just killed a stag and his hands are covered in blood. D'Artagnan rides up and offers him a note from Queen Anne. He wipes his palms with a cloth before he takes the note, but his hands are still covered with blood up to and above the wrists. When he reads the note, he and D'Artagnan take off on foot for his castle where they go into a private room behind the walls. Suddenly it is apparent that his hands are perfectly clean right down to his scrubbed fingernails and, without explanation, the plot-heavy sequence continues.
Continuity mistake: The swords of the animated statue of Kali are different from the swords used in the close-up fight scenes.
Continuity mistake: When the guy with the snake is shot, Baron Samedi reappears and you can distinctly see the bloke holding the snake again.
Continuity mistake: In the scene where the inmate is being beheaded in the courtyard, as they change shots for the special effect you can now see that the sun has moved and is glaring into the camera lens and the executioner is now visible standing next to the guillotine.
Continuity mistake: When Shaft says that his folks were not into cotton but tobacco, the Colonel has his hands (and the recorder) on the table, but jump suddenly up at the cut. Shaft's glass is also more full than at the beginning of the scene. (00:35:05)
Continuity mistake: Victor Pivert is in full road rage mode as he is waiting at a road stop after skipping most of the line speeding through the emergency lane. As he bickers with his French compatriot, he hammers his horn initially with the right hand, then after a pause he starts hitting it with his left hand in a side view, which turns instantly into his right hand at the cut. (00:08:30)
Continuity mistake: The attachment to the minisub is inconsistent. It is an open hook first then as it's being lifted it becomes an enclosed shackle looking quite different. Plus a figure now appears on the roof. Ben Gazzara has just gone below. (00:57:42)
Continuity mistake: When the prisoners in the confinement holes talk clinging from the bars at the top, Jim Brown's hands are one bar apart in the overhead shot, 2 bars in close-ups. (00:00:50)