Marvel seems to be losing its powers

In “The Avengers” (2012) Nick Fury (Samuel L. Jackson), a spy, described heroes as “an old-fashioned notion”. Certainly the film’s characters, including Captain America and Iron Man, were not novel, first appearing in comic books published in the mid-20th century. But if the idea was old, the excitement around superheroes had been renewed. “The Avengers” became the first Marvel movie to make more than $1bn at the global box office.