During the final scene, while the camera is showing the police at the base of the pole, a spotlight is throwing a very clear shadow of the camera, complete with 'rubber ducky' antenna on the actors.
In the scene where Tommy Fawkes gets the Parker brothers to sign the contract for their act, there is continuity with the chair. The Parker's stand up and go to set up the scene to show Tommy Fawkes. From a high shot you see Tommy Fawkes stand up and turn his chair around, it then cuts to the front of Tommy, his chair is in its original position and he turns it around again to the position he did in the first high shot.