I think the title sequence of Akira teaches a masterful way to tell the prologue of a movie.
1. The sequence starts with a view of Tokyo in 1988 (Present year when the movie was released).
2. An explosion engulfs the entire city. This is the catastrophic moment that sets the world of the movie.
3. The screen is filled with a burst of pure energy and the name of the director appears.
4. After the explosion we move forward to a cenital view of another city 31 years in the future, this is when and where the movie actually takes place.
5. Where old Tokyo used to be, a massive crater, a void.
6. The movie title appears in a red monumental typography (a trimmed version of Impact according to my research). Red is the main color for the main characters and I think its used to communicate power and chaos.