Pokémon: The Rise of Darkrai
劇場版ポケットモンスター ダイヤモンド&パール ディアルガVSパルキアVSダークライ (original)
Starring Rica Matsumoto, Ikue Otani, Yuji Ueda, Megumi Toyoguchi, Megumi Hayashibara, Ryuji Akiyama, Kiyotaka Furushima, Inuko Inuyama, Koji Ishizaka, Unsho Ishizuka
It's a action & adventure and animation movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.