Flatland (2007)
Flatland is a 2007 animation movie directed by Dano Johnson and Jeffrey Travis, with a running time of 36m. It stars Martin Sheen, Kristen Bell and Tony Hale.
Set in a world of only two dimensions inhabited by sentient geometric shapes, the story follows Arthur Square and his ever-curious granddaughter Hex. When a mysterious visitor arrives from Spaceland, Arthur and Hex must come to terms with the truth of the third dimension, risking dire consequences from the evil Circles that have ruled Flatland for a thousand years.