Stephen Georg’s review published on Letterboxd:
Honestly, I have no idea how I could properly review this movie without spoiling huge elements of the series. With that in mind, I'll say "wait for the video review coming to YouTube" and give it a 3 1/2 stars.
Overall I really enjoyed it, I loved the direction they went with it and thought it was really creative, but the climax of the film is waaaay too short and the ending was definitely not expected. That's sort of good, as it caught me off-guard, but I can just hear the groans of angry fans sitting in a 2005 Japanese theater. I'm on the fence, but leaning toward the groans.
Either way, that wraps up FMA! We'll start Brotherhood in the near future.