Yeah...I was really blown away.
I had lowered expectations going in...and left incredibly refreshed. The plot...not all that original. Big corporation is killing people because of some sly, underhanded scheme it's trying to cover up. We've all heard it before (The Constant Gardener, Syriana, The Insider). Blah blah blah.
Where this film excels is in its execution. It was phenomenal. The use of silence, camera movement, fluidity, sequencing, and good acting. Tony Gilroy did an outstanding job of pulling it all together. He took all the great elements of filmmaking and made them work together so well, that I see very few flaws with the film.
In terms of It might be George Clooney's best performance and I think he deserved the Oscar nomination. I also think Tom Wilkinson did great. But I really don't think Tilda Swinton deserved the nomination or the Oscar...but that's just me.
I think this film was cursed to come out in a year of such great films. 2007 really was a year of well-made budget films...and although I hate the Oscars, I do like when a film that actually deserves to win, wins (I suffer from Hollywood hypocrisy like the rest of you). I think that in any other year, Michael Clayton would've been a true contender.