Do link IMDb na pergunta:
Gus Van Sant borrowed the title from Alan Clarke's film of the same name, and thought that it referred to the Chinese proverb about five blind men who were each led to a different part of an elephant. Each man thinks that it is a different thing. What Clarke's title actually referred to was the idea of the "elephant in the room", where something is so obvious that to miss it would be the equivalent of not seeing a huge elephant in an ordinary room, yet is still not recognized out of either stupidity or willful ignorance. In this film, the "elephant in the room" is the homicidal rage of Alex and Eric, which leaves them free to precipitate the last-scene massacre at their school.