They’ve conquered the box office. Now it’s payback time. As they are attacked by filmmakers like Martin Scorsese, are TV and movie superheroes fighting a losing battle against reality?

Alan Moore’s celebrated 1986 series Watchmen revolved around a conspiracy to kill off masked vigilantes, and in effect that’s what it did in real life. Compared with the complex, mature, literary nature of Watchmen, most other comic-book titles looked juvenile and two-dimensional. This was at a time when “comic-book movies” meant Christopher Reeve’s wholesome Superman series, and when the only inhabitant of the Marvel movie universe was Howard the Duck. The entire industry had to up its game, and a new era of mature “graphic novels” was born.

Now we appear to have come full circle – which is fitting for a story so heavy with clock symbolism. With uncanny timing, HBO’s lavish new Watchmen series arrives at a moment when comic-book movies are again in what you might call a decadent phase of the cycle. They have decisively conquered our screens and our box offices, with ever grander and more improbable forms of spectacle, to the extent that we’re now beginning to question how much more of them we need. Could Watchmen kill off the superheroes once again?