At 8:55 in the video, Shuster and Siegel are shown in front of a pencil drawing of Superman. The art is by Neal Adams, and was part of a 1975-1976 ad that ran in newspapers, showing Superman carrying Shuster and Siegel, one on each arm, with the caption "Can Superman save his creators?"
It was a promotion done by Adams to bring attention to the very bad treatment of Shuster and Siegel by DC, during the same time DC/Warner were producing the first Superman movie. The bad publicity resulted in Shuster and Siegel each getting a very modest $35,000 annual pension, on the strict condition that they do absolutely no media interviews from that point forward.