Since the announcements that the "Man of Steel" sequel would include not only Batman by Superman's side but Wonder Woman as well, comic book fanboys began to speculate a Justice League film would be in the works in the not too distant future.

Late Sunday night came official word from Warner Bros. president of worldwide production Greg Silverman that the studio is indeed planning to make a "Justice League" movie.

The Wall Street Journal had an exclusive interview with Silverman who said Zack Snyder would direct the movie that will bring back Henry Cavill, Ben Affleck, Gal Gadot and Ray Fisher, who was officially announced last week for the role of Cyborg.

"It will be a further expansion of this universe," Silverman said. "'Superman vs. Batman' will lead into 'Justice League.'"

The film's script is still being worked on and is expected to come out no earlier than 2018, according to the Journal.

However, other news publications are reporting that the tentatively titled "Batman vs. Superman" and "Justice League" will film back-to-back and have a release date of 2017.

Other Warner Bros. executives told the Journal that, while the studio has no plans for solo Wonder Woman flick with Gadot as the lead, it is interested in producing one.

"That is our hope," said Sue Kroll, president of the worldwide marketing. "With the right script, that could be viable. The world is ready for her."

The studio tried to make a Justice League movie back in 2008 that had "Mad Max" director George Miller at the helm, but it was nixed at the last minute.

Warner Bros. does have several other DC and Vertigo Comics movies lined up that will not be part of the "Justice League" film. They include "Shazam," "Metal Men," "100 Bullets" and "Fables."

The "Man of Steel" sequel will star Cavill, Affleck, Gadot and Fisher along with newcomer Jesse Eisenberg. Amy Adams, Diane Lane and Laurence Fishburne are set to reprise their roles for the May 6, 2016, release.