Corrected entry: In the pool scene, after Moriarty leaves, Sherlock sets the gun on the floor to help John out of his coat. After he gets it off and tosses it away, he goes off screen for a few seconds. He did not pick up the gun before he left, but he comes back holding it. (01:26:45)
Noman
27th Aug 2011
Correction: When Sherlock goes off screen, he goes to pick up the gun and search the area for Moriarty and the snipers. It is obvious that Sherlock picks up the gun because he is seen bending down just before going off-screen.