I have been trying to find th etitle of a movie I watched as a child for a while now. All I can really remember about it is that a child (I'm sure it was a boy), somehow befriended a large robot (in a rough man shaped form). The robot had a rectangulat face with one small round eye and one big round eye. And the robot took the boy to a cloud city, where there were other robots. I think it had the words auto and/or... topia in it's title, but cannot remember enough about it. Can anyone help?

Could it be from Robot Carnival. It has several stories of robots.