- He describes it as a hybrid CSI thriller/superhero/sports movie (based on the athleticism of the character).
- They’re drawing from Geoff Johns’ run, Mark Waid’s philosophy of speed, and the Silver Age. In particular:
We’ve also tried to take our inspiration from the old Silver Age Barry Allen stories and imbue it with that sense of fun and wonder while still keeping that cool, slightly darker tone.”
- Guggenheim keeps suggesting cameos from elsewhere in the DCU, but those decisions would be made way above his level.