Objectively, this film deserves a rating of 4/10, or 5/10. Without knowledge of manga/anime, it is difficult to understand what is happening on the screen. The story starts from the middle, the threads are suddenly interrupted, only to return at the end of the film (I will skip the example so as not to spoil, but it is enough to see this film to understand what I am talking about) and the characters don't have a moment to be well portrayed.
The choreography of the fights is tragic. They wave their arms like paralytics, shoot from their hands like Spiderman, and as if that wasn't enough, transmutation is shown in a primitive way, as if someone animated it in stop motion in Paint. In general, this film looks a bit like an amateur work created by fans.
So why did I give it a 6/10? I even had fun on it. It was fun to remember this story. That a completely new way of presenting this story about brotherhood and bravery is ok as a one-time experience for a fan of the series. This is nothing fantastic. It's an average film at best, trying to cram several dozen hours of an animated series into less than two hours of film. It's not hard to imagine how this film came out, since he so desperately wanted to tell the whole story of the brothers.