Justice League's Underperformance leads to shake-up for future DC Films

The Warner Bros. film executive in charge of production on the studios' DC superhero films is stepping down after the under-performance of Justice League at the box office.

According to reports, Jon Berg, Co-President of Production at Warner Bros Pictures, will leave his post at the studio to become a producer with filmmaker Roy Lee, who has backed successful films for the studio, including IT and The Lego Movie.

Berg, who served as one of the producers on Justice League, has been an executive at the studio for nearly a decade. The news was made official by Toby Emmerich, President of Warner Bros Pictures Group, who said the decision to step down from the position was made by Berg himself.

"This is something that Jon approached me about six months ago and he expressed his goal was to ultimately be a producer at the studio. We are thrilled that Jon is partnering with Roy and anticipate their company being a valuable source of films for Warner Bros and New Line," Emmerich said in a statement.

Emmerich, the former head of New Line Cinema, a year ago replaced Greg Silverman to improve the performance of Warner's movie studio.

As of now, no replacement has been named yet. However, the latest change is expected to take effect only early next year.

Recent DC films, which include Man of Steel, Batman v Superman: Dawn of Justice and Suicide Squad, have all, with the exception of Wonder Woman, drawn unfavorable comparisons to their Marvel counterparts with most critics calling them out for their dark and gloomy tones.

Justice League, directed by Zack Snyder and featuring Ben Affleck, Gal Gadot, Henry Cavill, Ezra Miller, Jason Momoa and Ray Fisher, was made with an estimated $300 million, and is only now closing on in the $600 million mark in worldwide box office collections.

The next live-action superhero film for Warner Bros is Aquaman, which is directed by James Wan and is scheduled for release next December.