Both films are very well done. They hold true to the traditional storyline and yet change a fair amount of material as well as add some to give it a slightly different taste while still holding the same energized Gurren Lagann atmosphere. There were a few sequences that were greatly condensed or even removed from the original series to fit the four hour, two-part film. Thus I would strongly suggest watching the show before seeing this movie if you've never seen the show and are interested in seeing this film. Its good stuff.
Overall, I would say that this movie is the movie that will pierce the heavens!
