A ranking of all the movies from 2010 that I've seen.

Top 10 UK Releases:
1. The Social Network
2. Scott Pilgrim vs. the World
3. Inception
4. Uncle Boonmee Who Can Recall His Past Lives
5. The Arbor
6. A Single Man
7. Valhalla Rising
8. The Ghost
9. Certified Copy
10. Winter's Bone

Top 10 US Releases:
1. Fish Tank
2. The Social Network
3. Scott Pilgrim vs. the World
4. Inception
5. Secret Sunshine
6. The King's Speech
7. Valhalla Rising
8. The Ghost
9. Mother
10. Winter's Bone

Top 10 Films that Premiered in 2010:
1. The Social Network
2. Scott Pilgrim vs. the World
3. Inception
4. Uncle Boonmee Who Can Recall His Past Lives
5. The Arbor
6. The King's Speech
7. Poetry
8. The Ghost
9. In a Better World
10. Certified Copy