‘Avengers: Doomsday’ Co-Director Explains It’s ‘Very Difficult’ to Evolve Marvel Characters, but ‘We Need to Surprise Ourselves’ and ‘Audiences’

“Avengers: Doomsday” co-director Anthony Russo has opened up about the pressure that comes with evolving the franchise’s iconic superhero characters, explaining that finding the balance between moving the story forward and honoring those already-beloved characters can be “very difficult.” “It’s a…