Batman Begins is the first movie in Christopher Nolan's batman trilogy and launchs the greatest superhero trilogy of all time. The movie is about Bruce Wayne. His childhood, his life, and what exactly made Batman, Batman. Nolan uses this movie to set the tone of this batman, and to change the vision of batman. Batman is a dark character, darker than night, just like his dark past. The movie talks about who trained Bruce and how he was trained to allow the darkness be his friend in combat.
Although this movie is clearly the weak link in the trilogy, this movie is still a very well done movie, and in terms of how launching pad movies go, this movie jumps starts Nolan's trilogy brilliantly and smoothly.