I've been looking for a certain animated movie I once saw as a child. I can't remember most of the character, but I will provide what I remember. The protagonists I don't remember much aout. They were small, much smaller than humans. Perhaps they wer pixies or sometthing like that. I do remember the antagonish fairly well though. I can't really remember what its name was but it was definitely some kind of monster. It was some kind of black tar creature (just imagine pollution come to life). It was ancient, evil, and it was locked away in some sort of tree using magic. It was able to be freed with the help of two humans who use a machine that chops trees down. I distinctly remember the tree having some kind of red spraypaint painted on it in an "X" fashion. The setting is some kind of magic forest. Wherever it was, it had a lot of trees. I also remember that later in the movie one of the protagonists (who I believe was female) was in the two humans machine trying to stop the monster. Unfortunately, that is really all I can remember. If you know the title of this movie I would be really happy if you would share it, or if you know the movie I'm talking about and can't remember the name, please add what you can remember from it to help others try to answer. Thank you.