Before Cillian Murphy and Christopher Nolan helped define the summer box office with Oppenheimer, the two collaborated on many films before. Perhaps their best-known previous collaboration came in Batman Begins, where Murphy played Dr. Jonathan Crane, the Scarecrow. Both Batman and Scarecrow are avatars of fear, but when gassed with his own toxin in Batman Begins, what was it that Crane feared most?
Source：https://www.cbr.com/batman-begins-scarecrow-fear/
