With production already underway on "Wonder Woman" and "Justice League Part One" scheduled to start filming next month, Warner Bros.' universe of DC Comics films is expanding rapidly. The Wall Street Journal spoke with a few of the minds behind the growing, interconnected film universe, including "Batman v Superman: Dawn of Justice" and "Justice League" screenwriter Chris Terrio.

Terrio spoke about his theory when it comes to introducing characters, which we'll see in action when Wonder Woman debuts in "BvS" without an origin story. "If you bring in a character in a kinetic way, then you accept the reality more easily," said Terrio. The article then states that this same method will be used for the 2018 solo films, "Flash" and "Aquaman," which are said to continue each characters' story after what happens in 2017's "Justice League" film.

The end of "BvS" is also said to provide a "natural starting point" for "Justice League." That film, Terrio said, required him to research a number of disparate topics. His areas of study included, as WSJ writes, "red- and blueshifts in electromagnetic physics to think about the Flash, investigated deep sea biology in the Mariana trench to create the world of Aquaman and read the Greek historian Diodorus of Sicily's account of the war between Amazon and Atlantis to better understand Wonder Woman."

"If you told me the most rigorous dramaturgical and intellectual product of my life would be superhero movies, I would have said you were crazy," said Terrio.

"Batman v Superman: Dawn of Justice" opens on March 25, 2016. "Justice League Part One" opens on November 17, 2017. "The Flash" opens on March 16, 2018. "Aquaman" opens on July 27 2018.