Phil Lord and Chris Miller kept it pretty cryptic when revealing that they were indeed offered a live-action movie in the Spider-Man universe.
"Yes," Miller said on the Happy Sad Confused Podcast. When asked whether it was the main MCU or a spin-off, Miller simply replied, "You know, you know." As to whether or not the film came close to entering production or if it just didn't pan out, Miller said, "As you know, we love Spider-Man. We're fans of the character and the world. We'll leave it at that."
