I don't think much about the mistakes in the movie. I try to focus on the story and the messages the movie is showing. In this movie, there are some pretty neats things, like when the clones and the Pokemon were about to fight, Pikachu shouts out "Pika" which echoes in the background, then changing to the song "Brother, my brother". And when Ash is climbing down the place where Mewtwo blasted him, he runs and stops to see the Pokemon fighting, the camera creatively rises to show this. They also had a good message in the movie, which Mewtwo says near the end, "One's birth is irrelevant, it is the gift of life that determines who you are". I think that is saying something. Well this movie was good to watch and I cried when Pikachu tried to bring Ash back to life (like most people) and I liked the story of it and how it took place. The music was also good. But there were some problems, but I give it 9 out of t10. I think they did a good job. It still entertains me everytime I watch it.