Over the closing credits he gives you a bunch of moving images from the film, in stuttering black and white grainy footage, which then turn into pen and ink drawings. These are brilliant, as were the shots on which they are based. Like the last Harry Potter film, the plot is really superfluous, but the cold wet stonework and handsome fellows are brilliant.
There will inevitably be a sequel, featuring Moriarty. We heard his voice but we did not see his face. I wasn't able to recognise the voice, and no doubt there is still room for manoeuvre with the casting. But in any case the next film there will be three handsome chaps arching ridiculously at each other. Lovely.