When the taxi leaves to take the blackmailer back to base to count the loot, the next shot shows the watching policemen about to give chase, with the same taxi parked on the street behind them.
Camera shadow moves onto Madge's coat as it pushes in closer from behind after Eddy leaves the bar.
Camera shadow on the back of a patron as Barrett exits the phone/toilet room.
When Melville is stood outside the Counsel & Clerks office, the shadow of the boom microphone is visible beside the sign, on the wall behind him.