I've just finished watching it.
See, viewing this movie was idfferent from all the others,because I had no idea what it was going to be about before I watched it. On the down side, only Pikachu and Piplup were really used, Arceus sounded...weird, and it felt a little short to me. On the other hand, it was pretty okay. I liked how they went back into the past, and Pichu, and the three Johto starters were adorable. Overall, an average movie.