天元突破グレンラガン
In conjunction with the release of the movie, Gainax has released a series of music videos entitled "Gurren Lagann Parallel Works" which contains alternative stories of "Gurren Lagann" set to songs from the original soundtrack. The first series was released on June 15, 2008. A second series with seven videos, "Parallel Works 2", was released on May 26, 2010.