According to posts on Manga Entertainment’s official Twitter account, science fiction anime Akira is their top-selling anime releases for 2011

Synopsis
In the year 2019, thirty-one years have passed since the outbreak of World War III. In Neo-Tokyo, all authority is waging a never-ending struggle against the underground that virtually rules the shattered city. A top-secret child with amazing powers of the minds breaks free from custody and accidentally gets a motorcycle gang involved in the project. The incident triggers psychic powers within one of the members, Tetsuo, and he is taken by the army and experimented on. His mind has been warped and is now on the path of war, exacting revenge on the society that once called him weak. [ANN]

Rankings:

1. Akira 2011 reissue (Blu-Ray)
2. Yu-Gi-Oh! 3D: Bonds Beyond Time (DVD)
3. Summer Wars
4. 5 Centimetres per Second
5. Evangelion: 2.22 You Can (Not) Advance
6. Highschool of the Dead
7. Fullmetal Alchemist: Brotherhood: Volume 3

[Source]