The reason for this explanation is because Mewtwo was a great antagonist turned semi-protagonist. And how it was completely ruined to make a horrible movie. Okay the movie wasn't horrible just generic and kiddy. My biggest beef though is mewtwo's voice going
From Awesome
To Girly
I would have preferred them to not make another movie than to give him that voice. I'm sorry I'm making such a big deal about the voice but the first one was so iconic and intellectual. Not to mention he went from a boy voice to a girl voice and that they made his character just simple.
Well that's enough for this rant hope you took time to read it