Confusing yet thrilling plot

Rating: 9/10 (4 March 2010)

This is one of the best gangster movies, I've ever seen. The story is quiet confusing but at the same time really conclusive.
In the beginning there's nothing really special, you see a young guy (Matt Damon) infiltrating the Massachusets States Police and delivering information to his friend and boss of the Irish Mafia Costello (Jack Nicholson). But not long after he is grouped into a new unit, an other young guy (Leonardo DiCaprio) begins to work for the Police and in turn infiltrates Costello's gang. That's when the story becomes exciting. As the two characters get used to their new environments, the viewer often doesn't really know anymore who is the good guy and who the bad guy. You might not know who is more sympathetic to you until the end which is very abrupt and, in my opinion, a little bit special.
Although the plot sounds really nice (and it is of course!), also this movie has its faults. The two main characters advance in their ranks really fast, which is not really realistic. Also both of them work straight for their side. I think good and bad can't be defined like black and white, but like tones of gray, and so the characters should act too.
There are negative points in this movie, nobody can deny it. But the positive side of the movie is clearly dominant. It's a must for fans of gangster movies and I totally recommend it to everyone who likes a thrilling plot and lots of action.