Everybody knows how the comic strip hero Batman started and thats what is shown in the movie. It all starts when he as a child playing with his friend falls into a pit and bats hover all around from the pit to scare him.
When he grows up he kills the guy who killed his parents and goes to jail. Then he learns to overcome his fears and is no more afraid when bats hover around in the same pit. With scientific advancements he gets a kit to make himself look like a bat and fights the badies.
I dont think I need to write much about the movie as people would be knowing about it.
This is must watch movie for all Batman fans and nothing is complicated. You can enjoy every moment of the movie.