Continuity mistake: When Sherlock Holmes has been taken into the alley by Irene and is confronted by her escorts, in one shot the braid of the wig worn by Holmes is down his back and in the next shot it is over his shoulder, in the front. (00:02:45 - 00:03:30)
Continuity mistake: The first time Sherlock shows his camouflage suit, its brown colour changes between the first and second shot. The first one matches exactly that of the room, but the second doesn't. Clearly the first one was achieved with a green-chroma-suit, and the second angle was a coloured fabric.
Continuity mistake: The handkerchief on Moriarty's chess table changes positions between shots.
Continuity mistake: Position of hat changes when Watson wakes up at his wedding.
Continuity mistake: In the ballroom scene of the peace conference, Sherlock is dancing with Madame Simsa in the close-up, when the shot goes to the wide shot of the dancing, the dancing Sherlock and Simsa are nowhere to be seen, instead Simsa can be seen in the lower left hand corner of the scene, talking to Watson.
Continuity mistake: Initially during the forest chase scene, Watson is on Sherlock's right side and Madam Simza on the left. After Little Hansel is shot which throws them forward, Watson is now on Sherlock's left side and vice versa.
Continuity mistake: The soldiers on the train that are set on fire simply disappear once the door is closed, including the fire.
Continuity mistake: When they are running through the woods, the marksmen shoots one of the fleeing gypsies. The scene goes to slow-mo and we see the bullet goes through him and hits the tree behind him. When the scene switches to the women watching him fall, the tree behind him is unmarked.
Continuity mistake: When Sherlock is fighting the Russian, he falls on a cart filled with seeds, which cover his right eye. When the angle changes, a frame later, the eye is clean.
Continuity mistake: On the wedding day, the bottle under Holmes' car changes positions between shots.
Continuity mistake: In the sequence where Holmes and Watson escape Meinhardt's arms and munitions factory with the help of the gypsies, Watson is clipped by a bullet in the slo-mo sequence at the bottom of his rib-cage on the right side. Later, in the train, he is seen stitching his wound on the left side.
Continuity mistake: Sherlock looks at the ring of a murdered man, who was killed in a blast along with about a dozen other men in Paris, and the ring was plain. But later, the ring is shown again, and this time it has the letter M on it, a large letter, and it is very ornate - nothing like the other ring.
Continuity mistake: In the scene where Watson goes to the telegraph office and finds it is locked, he kicks the door in, visibly damaging the frame. But once he comes out the frame is fixed and the door is lockable.
Suggested correction: When Watson is leaving the telegraph office the door frame is still visibly broken, but apparently not enough to stop the door from closing and latching.
