In case you haven't seen it already, I present some reasons to see The Dark Knight aka Batman 2:

• (at the time of writing) The Dark Knight is the highest rated movie on IMDB with a score of 9.5 average out of over 90,000 votes, beating The Godfather.
• It was Heath Ledger's last movie and he was a great actor who's work we should respect and watch.
• The reports I read way back when indicated he got so completely into his character that he had terrible problems pulling himself out of it afterwards.
• Christopher Nolan directed and co-wrote it, and he did the last Batman Begins movie, The Prestige, Insomnia and Momento.
• It has Christian Bale as Batman, who I've thought has been an awesome actor ever since making Empire of the Sun back in 1987 as a child. He also was in Equilibrium (yes, I liked it), The Machinist, The Prestige, and others.
• It's not only a good comic-book flick but also a fantastic detective story. Yes, there's a real story in it.
• There's an IMAX version with several scenes filmed specially to take advantage of the larger screen.
• Because I said so? :)