The marriage of the technology of computer graphics and animation seems almost natural to us now.

Computer genereated imagery transformed, not just the way animators worked, but the way in which stories were told - a union which continues to mesmerise children and adults alike the world over.

Jonathan speaks to Ed Catmull, American computer scientist and former president of Pixar and Walt Disney Animation Studios about the genesis of computer graphics and and how his background in science informed his future in animation.

First aired November 7th, 2015