Then somebody—McKenna thought it might have been Feige—suggested that the movie could have a post-credits scene with multiple villains that would set up Sony’s Sinister Six project. “We were coming up with different storylines that would just sort of write towards a tag like that,” McKenna explained. They wrestled with how it would work until the day when Feige asked, “Remember that idea with all the villains that we were talking about for a tag? That Sinister Six idea? Why don’t we just do it in the movie?” “That just sort of blew everything open,” McKenna said.

