Literally USA on Instagram: "This video captures a classic behind-the-scenes moment showcasing the improvisational brilliance of Robin Williams during a commercial shoot, where he turns a simple scripted task into an extended comedy performance. In the clip, a young Robin Williams sits in a plain studio setup with a white background and an office chair, rapidly cycling through different personas and accents while repeatedly going off-script. He riffs as a flamboyant designer, a serious dramatic