At the beginning, when Mark is cheering Lucas to break Duster, there’s another instance of Mark taking his hat off. Then the next time the camera cuts over to him—it’s back on. In the second picture, that’s Uncle Johnny riding up.
Thanks Ann Marie!
After being surprised by Uncle Johnny, Mark goes into the house. He looks at his uncle’s picture and talks to his mother’s picture. There is a small strip of wood attached to the back of Uncle Johnny’s picture frame—so it can stand on the desk. But when Mark returns to the corral with the picture of Uncle Johnny, that piece of wood is missing. Thanks Ann Marie!