There's been speculation about how "Man of Steel's" rewarding box office could escalate efforts for a "Justice League" movie, but this year's Superman hopes everyone will wait to do it right.

"Justice League could be great, if done correctly. It's a very tough one to do," "Man of Steel's" Henry Cavill told ABC News.

"The DC Comics heroes are all god-like in their power," he went on. "And so in this real-world universe, this real-world setting we're telling our story in, it's going to be tough to achieve that and it has to be done delicately, and with a lot of thought."

Warner Bros. is reportedly already at work on a sequel to "Man of Steel" with director Zack Snyder, who's seen his darker take on the 75-year-old hero rake in $408 million globally since its mid-June release. There have been rumors that the simmering "Justice League" movie could make an appearance as early as 2015 - which would be just in time to rival the "Avengers" sequel - but Cavill isn't convinced it would arrive that early.

"It won't be right away - I hope it's, not, anyway," he said. "It may take some time to build out other movies, other characters, and then introduce them in one way or another. I think it would be great to do, but I don't think it's around the corner."