Best romance movie mistakes of 1973
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: When Webster steals a huge diamond, one of the guards comes to from the chloroform and raises the alarm before Webster has left the building. As he hurries to leave, Webster gets shot in the left arm, and he must use a truck as a battering ram to break through a garage door; he does this, but the garage door is now on the front of the truck, obstructing Webster's view, until, suddenly, it vanishes - all that's left are the side bits of the garage.