A simple recap of Seikai no Monshou lasting for 90 minutes pointing out the most important moments of the show. I do not recommend it as an alternative to the TV series because the cut scenes are chaotic and sudden, it's better to watch this in preparation for Seikai no Senki if you already watched SnM and forgot about some key elements/info/plot, it's good for remembering stuff but the flow is out of whack, it certainly doesn't feel like a movie. It doesn't have extra narration or reanimated scenes, the only things added to this are some minor scenes with Jinto and Lafiel at the end, ifit does have more then I didn't notice but it doesn't matter because the show good enough and the sequel exists.

I guess completionists and super dedicated fans will like it, more Lafiel-Jinto is always a plus so why not recapitulate 13 episodes in one and a half hour? The video quality and everything is the same so no worries here.