Here's one I noticed. Sherlock's jacket changes a few times within a scene, so they must have filmed it over a couple days, or with a lunch break in between, because at some point the wardrobe department must have got the jackets mixed up.
The first shot we transition to when Sherlock mentions The Bloody Guardsman during his best man speech is of himself looking at notes on the wall. His jacket has one vent. He talks with Mary and any wider shots where we can see his torso make it unclear what it looks like. He sits down at the table. When he stands up, though, we see his jacket has two vents now (made even more obvious by the way the end floats as he turns to show John and Mary the serviettes).
But I don't think this is the only time where this happens.
We get to the stag night. It's hard to tell what it looks like for the first scenes, either because he's got his coat on or because he's sitting down. It looks like it might have two vents when he gets up, then comes back into frame after John finishes the sentence "The game is on." But I could be wrong, and I'm not going to say it does definitively because it's too hard to make out.
The first good view we get is when he takes out his magnifying lens to inspect the carpet. Very clearly one vent. The next scene is in the cell at the police station, as we know, and as Sherlock stumbles through the doorway of the cell, we get a shot of him from behind and while it's kind of hard to see it looks like to me like the jacket's got two vents. But even if I'm not sure about this sequence (maybe if someone else can verify it), I am about the other one.
Last edited by Yitzock (September 18, 2015 8:08 pm)