Attack on Titan: The Wings of Freedom
劇場版「進撃の巨人」後編~自由の翼~ (original)
As the Trost District is reclaimed from the Titans, Eren is taken under the wing of Captain Levi and his squad, who decide to try and teach him to master his mysterious abilities.
Starring Yuki Kaji, Yui Ishikawa, Marina Inoue, Hiro Shimono, Yoshimasa Hosoya, Yu Kobayashi, Yu Shimamura, Ryota Osaka, Shiori Mikami, Tomohisa Hashizume
It's a action & adventure and animation movie, and has a rating of 7.9 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.