About 7 minutes in, Jones walks into a lobby, looking rather disheveled, his (what looks like thin) black tie way off center, to his right. Shortly after, when he gets off the elevator, he's wearing a thicker blue tie, and it's centered.
Barnaby leaves to meet with Cannon at Barnaby's office at 12:35am, which is only a few miles away. When he gets there, it's a bright,sunny day.
Frank Cannon reads a newspaper article about a suicide but the article is nothing to do with a suicide and is repeated word for word in a column on the left hand side of the page also.
In the darkroom scene, the shadow of a boom mic moves across Barnaby's forehead.