As the director of “ Green Lantern ,” Martin Campbell was far from the first, and certainly not the last filmmaker to deliver a stinker of a DC superhero film. But 14 years after its release, Campbell is unafraid to be honest about its shortcomings — especially the ones he takes personal responsibility for.

One somewhat infamous entry within the genre was Martin Campbell's Green Lantern (which is streaming with a Max subscription). The filmmaker recently shared one big way he could have improved the blockbuster,

Fourteen years after its release, director Martin Campbell has a pretty good idea why his Green Lantern movie was far from successful. He even takes personal responsibility for the Ryan Reynolds-led film’s flop.

Talking about his new movie, Cleaner, filmmaker Martin Campbell shares some of his regrets about 2011's Green Lantern, including not enlisting Ryan Reynolds to work on the movie's screenplay. Check it out!