First off, are the Oscars even relevant anymore? I haven't really noticed any of my friends talking about them before or after - this certainly wasn't the case six or seven years ago, I remember in particular Return of the King's win was huge buzz. Also the whole ten nomination thing is just stupid.
As for TDK. Do I think it deserved to be nominated for Best Pictures? Absolutely. Do I think it deserved to win? Questionable.
Putting the geek in me aside for a minute, TDK was a strong, complex, character driven crime drama in the same vain as Heat, The Departed or Goodfellas - not to say TDK is better than them, it's not (though personally I think it's just a taaaaaad bit better than Heat, but that's just for minor reasons). Point being, this movie had what those movies had: an involving story that acted on a grand scale where the character's actions affected a large group of people and where each character had their own goals, motivations and reasons for their actions. It had social commentary. It had a powerhouse ensemble cast that all put in their A work. It even had the look and sound of an epic. And critics recognized all of these facts and that is why The Dark Knight is one of the best reviewed movies of 2008; over 90% of the critics in America weren't simply blowing smoke out of their ass, I hate to tell you.
As for the nominations in 2008 - Slumdog was good, certainly, but I don't really see what all the buzz is about this movie. Nothing was really wrong with it, and the concept was intriguing, but I was dissatisfied with the overall presentation.
Benjamin Button - I was honestly disappointed by this film. I am a huge fan of Fincher's work but this movie left me wanting more. Now, don't get me wrong, it's a great film full of some really spectacular scenes, but there were many points where it seemed to drag on needlessly - and this is coming from a guy who had absolutely no problem with Zodiac's pacing. I remember leaving the theater and just feeling kind of empty, as if all I had witnessed really just summed up to nothing. Still, it's an exceptionally well made film (beautiful to look at), with a terrific first act, some great scenes in the middle and the end, but it could have been so much more, and I expected such from Fincher.
Frost/Nixon I didn't see, would anyone recommend this?
Milk - Really great film, enjoyed it a hell of a lot, Penn, Franko and Brolin are all spectacular in it and this very much did deserve to be nominated.
The Reader - Ugh. This movie. It was so.... okay. That's really all I feel about it. I don't hate it as much as some people seem to, but like them, for the life of me I can't understand why this wasn't nominated. Winston is phenomenal, of course, but she nearly always is, and I don't think this was her best performance - much like how The Departed wasn't Scorcese's best film (though in my opinion, it's up in the top 3 or 4) but it was about time he got an Oscar for SOMETHING.
So, having said all of that, I really can't understand why TDK wasn't nominated. It had flaws, yes, but all films do, and all the films that were nominated do, some, much more so than TDK, in my opinion. For those of you who think TDK didn't deserve a nom because you didn't like the story, directing, acting, etc etc, fine, fair enough. But to those of you who nitpick every detail of it and proudly proclaim it as an overrated piece of ****, then I'm sorry but you're just stupid. If you think that TDK shouldn't have been nominated because of Bale's voice or how the Joker was the only one standing after the cellphone bomb, then you are just blind, and I'm sorry that you can't enjoy the big picture because of a few dirty pixels.
The one movie that I am honestly SHOCKED wasn't nominated and I think deserved to win was the Wrestler. That movie was simply a punch in the gut from beginning to end and it's protagonist was both incredibly well developed and acted. I could forgive TDK not being nominated, as great as it was, I didn't expect it. But The Wrestler, the type of movie the Oscars love, getting shuned made me lose complete faith in the Academy.