Outside In (1994) is a Animation, Documentary film that follows the computer animation Outside In explains the amazing discovery, made by Steve Smale in 1957, that a sphere can be turned inside out by means of smooth motions and self-intersections. Through a combination of dialogue and exposition accessible to anyone who has some interest in mathematics, Outside In builds up to the grand finale: Bill Thurston's "corrugations" method of turning the sphere inside out. Currently, you can watch Outside In on Eternal Family. Streaming availability may vary by country and platform over time. It has a user rating of 8.0 out of 10 from 2 votes. Fans of animation movies may also want to explore similar titles below.