Warner Bros. should take note, because a lot of important people are offering the studio free advice on how to handle its long-planned Justice League film. First Kevin Feige, the man who ultimately brought together The Avengers, told Warner Bros. it needs to "have confidence in the characters, believe in the source material," and now Damon Lindelof is also throwing in his two cents. He said in a recent interview that a solution to the Justice League problem will hinge on the tone for the universe set up in Man of Steel.

"The Justice League problem is not a problem of, who is the bad guy that Wonder Woman and Green Lantern, Superman, whoever you decide to pit them against. The problem is: What’s the tone of that movie?" Lindelof (Lost, Star Trek Into Darkness) told The Hollywood Reporter. "They’ve been struggling with launching their own tone. The tone of Green Lantern is very different from the tone of The Dark Knight. They clearly inhabit two entirely different worlds. You want to feel like someone is establishing a world where the Justice League can exist, maybe Man of Steel is that movie."

He added, "If Man of Steel works, and it’s great, I think it starts to make sense where Paradise Island is in that world. Because that’s an entirely different world than the one Christopher Nolan introduced."

Man of Steel opens June 14. It's been rumored Warner Bros. is looking at a 2015 release date for Justice League.