A legendary Pokemon, Giratina, lives in the Reverse World and can freely travel between that and the real world. He is in a fight with Dialga.
Meanwhile Ash, May and Brock are traveling when the come across a pokemon, Shaymin, that needs help getting to a garden. This is made more complicated by Giratina and a man named Zero trying to get a hold of Shaymin.
I was actually kind of bored of this movie and was crocheting as well at the time so I didn’t pay much attention. As such, I can’t say much about it. The art and everything was nice looking though. I kind of wish I watched it without sound. Shaymin was cute looking but was annoying as hell. Zero was also pretty cute, but his personality ruined it.
I have nothing to say one way or another as to whether or not you should watch it. If you do though, it happens after The Rise of Darkrai so it’s best to watch it after that.