Metropolis
メトロポリス (original)
Kenichi and his detective uncle, Shunsaku Ban, leave Japan to visit Metropolis, in search of the criminal, Dr. Laughton. However, when they finally find Dr. Laughton, Kenichi and Shunsaku find themselves seperated and plunged into the middle of a larger conspiracy. While Shunsaku searches for his nephew and explanations, Kenichi tries to protect Tima (a mysterious young girl), from Duke Red and his adopted son Rock, both of whom have very different reasons for wanting to find her.
Starring Kei Kobayashi, Yuka Imoto, Kōki Okada, Tarô Ishida, Kôsei Tomita, Norio Wakamoto, Junpei Takiguchi, Takeshi Aono, Masaru Ikeda, Shun Yashiro
It's a animation and science-fiction movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.