In Frame (1969), Richard Serra emphasizes the disconnect bewteen the real space of the cinema and the illusory space of the screen. We first see Serra's hands methodically measuring and marking the boundaries of the film frame, followed by the projected image of a blank surface whose perimeter is similarly marked. The surface is then moved aside to reveal a window which looks out upon a bustling city street. The In the final stage, Serra interacts with the projected image of the window, remeasuring and remarking its borders.