Flatland: The Movie Reviews
The story is about a square named A Square living in a two-dimensional world. He meets a sphere who teaches him,"The Gospel of the 3rd Dimension." Such a gospel is considered heretical in the two-dimensional world, so he is chased by the police for this.
So basically, it's a square learning what infinity is. The story isn't well designed, but it has a couple interesting morals and even covers a concept that is very hard to grasp, the 4th dimension. However, the movie is mostly a religious and social commentary.
Avoid at all costs!