Music is one of the most important part of movie making. Ideally, it gives soul for the a scene or personality of a character, but in some cases, music can be more than that. The music can be the identity of the movie such as: The Godfather, Back to the Future, Superman, Indiana Jones, Star Wars and many more. Most of them were created by our beloved John Williams.
With all respect, we have great music composers at this time like Danny Elfman, Alexandre Desplat, Harry Gregson-Williams, Alan Silvestri and another great names but Hans Zimmer is the greatest. Musics that he created are pure and solid. From The lion King to The Prince of Egypt, from Gladiator to The Dark Knight Rises. They were all brutally beautiful. And to be honest, his music is one of the main attraction for me at the Theater.