After the duel with Albert de Morcerf did not take place, his father comes around the corner in a coach. Behind the coach a man (presumably a servant) can be seen standing. In the next close up shot when Albert's fathers halts the coach, the servant is gone.
Towards the end of the movie, when Edmond receives the letter of Mercedes, he stands with the letter facing away from Haydée. In the next shot, he has turned around facing her. In the shot following that one, he stands as before.