There are two types of Batman: there's Batman in blue, running around with Robin, making silly quips and fighting cartoony villains. Then there's the Dark Knight, Batman in black, a vigilante who often comes close to crossing the line between himself and the criminals he fights.
Batman Begins is, finally, Batman in black.
This movie gets everything right. The screenplay is based on Frank Miller's Batman: Year One, so right away you know it's going to be dark and edgy (Miller also wrote Sin City). It's directed by Christopher Nolan, responsible for Memento and Insomnia, so you know it will be trippy and a little strange. And it stars Christian Bale, a guy that is not afraid to make bold decisions even when he is in BAD films.
The movie flat out rocks. The movie is also a bit scary at points: there are a few scenes when we see Batman from the perspective of the criminals, and it doesn't look like a lot of fun. In addition, one of the villains featured in this movie is the Scarecrow, and he is a perfect outlet for Nolan's trippy tendencies.
Wimpy little kids will get scared by this movie... but everybody else will enjoy it.