Warning: Full spoilers follow for Black Widow.
Screenwriter Eric Pearson would seem to have the Marvel Cinematic Universe running through his bloodstream at this point. After enrolling in the Marvel screenwriting program in 2010, he wrote the four Marvel One-Shot short films that were released from 2011-2013. That led to his working on the Agent Carter TV show before he co-wrote the screenplay for Thor: Ragnarok while also handling various uncredited script doctoring assignments for…