Similarities: They're both 9, both innocent and curious they all so have the same birthday which is cool and have the same colored hair in the movie

Differances: Shmuel is Jewish and Bruno is german-boy, Bruno lives in a nice home with fresh food and has an easy life while Shmuel is in a concerntration camp, working him self to death and has no fresh food or clothes. and could die at any moment but Bruno is a loney boy so when he hear Bruno say that he wishes he was there he probuly thorth Bruno was stupid.