Music or Score during 2011 Oscar montage for best picture?

There was a montage before the best picture oscar was given out. It basically had a short clip of this year's best picture nominees. This score is used quite often during these movie montages but I have no idea the name or who composed it. Do you?
Update: So, it is not Marche Slave by Tchaikovsk. Just listened.
Update 2: Yes! 2nd movement. Thx.
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