This symbolizes the great depression. it also shows if you would want to get punched with a mouth guard or without one. In cinderella man when he got hit and his mouth guard fell out and he kept fighting shows that he wasn't fighting for himself or his family but for all of the people that got hit by the great depression showing it didn't matter how many times he got hit he was fighting the great depression. He was fighting the great depression and it shows all the Americans in the depression that they can make it out. It also symbolizes the time between the 1920s and 1930s because that's how long it lasted. finally it symbolizes the struggle that a lot people went through one man can have nothing and another can be rich.