The Lord of the Rings: The Two Towers
In this impressive scene of LOTR, Aragorn kicks a steel helmet, falls on his knees and starts yelling frustrated because of the hobbits’ fate. In fact, that reaction happened because Viggo Mortensen broke two of his toes while kicking the helmet! The director was so impressed by how the actor went on according to script, that he actually kept the scene for the movie.
