Mild spoilers ahead, although I recommend reading them even if (especially if) you haven't seen the movie yet.
I was very surprised to hear that this movie was directed by Tomoki Kyouda, who also directed the original series. While I was watching, I felt pretty safe in assuming this movie was made by someone who hated Kyouda's guts. Maybe he does?
The basic premise is that it's like an "Alternate universe retelling" of the story of Eureka Seven, which I presume is supposed to be Studio Bones' excuse for reusing cuts of animation from important moments in the original series. Not only were the creators of this movie content with attempting to ruin the legacy of indivudual cuts of animation, they also felt the need to screw with the characters, too.
The writing in this movie feels like Kyouda was feeding the script of Eureka Seven into a machine learning algorithm along with some of the lowest rated fanfiction he could find, which is the only reasonable explanation I can think of as to why most of the cast has an impossibly contrived backstory involving time travel and accelerated aging, just to explain why they look the exact same as they did in the main series, despite allegedly being completely new characters. This is made even worse by the faux-philosophical bullshit they come up with to try and justify it.
My initially high hopes for this movie were gradually worn down the longer I watched it, but the moment when two crew members of the Gekko (who, in the main series, were supportive figures for Renton and Eureka) pin Eureka down and attempt to remove her clothes to "check if she's an alien", any potential goodwill I might have had left towards this movie was gone. Not only is Eureka stripped of her identity and characterisation and reduced into a pale shadow of herself, she also is forced to feature in a thinly veiled "rape" scene. Fuck this movie.
The only worthwhile thing about this movie is a small handful of original cuts of animation, which I would recommend looking up online rather than watching this pitiful excuse for a movie.
Don't watch this, regardless of whether or not you've seen any other parts of the series.
