Russell's name tag goes from Hello (with his name) to just his name.
During the cemetery scene approximately 18 min and 20 seconds into the film you can clearly see the entire body waist up of a guy in sunglasses and a white shirt holding a boom mic and standing directly behind the two character in full view of the camera. He is so noticeable that he could easily be mistaken for a character standing behind them, but then you realize he's actually just a boom mic operator holding the boom mic which is also in full view of the camera.