Charlie appears around the :50 mark with his guests Ambassador Moore & Will Hays.
Apparently the crowds lining the sidewalk to see Charlie were so enormous that members of the National Guard had to be brought in to help bring it under control. When Charlie arrived, he stepped from his car, locked arms with Syd Grauman, and paraded up and down the street for two blocks with one of the big spotlights, which you can see in the background, following them.