Heisserer did a recent Reddit AMA: https://m.reddit.com/r/IAmA/comments/5ay3h2/im_eric_heissere...
It's a bit unfortunate that Heisserer made the visual design choice of a circle as the basis of nonlinear writing. It's a little trite. Overall, I'm thinking that maybe this story didn't need to be visually realized, even if it's a good script. A radio play instead?