To create the wormhole and black hole, Dr.
Kip Thorne collaborated with VFX supervisor
Paul J. Franklin and his team at Double Negative. Thorne provided pages of deeply sourced theoretical equations to the team, which then created new CGI software programs based on these equations to create accurate computer simulations of these phenomena. Some individual frames took up to 100 hours to render, and ultimately the whole CGI program reached to 800 terabytes of data. The resulting VFX provided Thorne with new insight into the effects of gravitational lensing and accretion disks surrounding black holes, and led to him writing two scientific papers--one for the astrophysics community and one for the computer graphics community.
For a cornfield scene, Christopher Nolan sought to grow 500 acres of corn, which he learned was feasible from his producing of Man of Steel (2013).The corn was then sold and actually made a profit.
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