VIDEO: "Doomsday Clock" Marries the "Watchmen" World with the DC Universe

This November, DC's superhero universe of Superman, Lex Luthor and the Justice League will come face to face with the characters from the classic comic book series Watchmen in the upcoming mini-series Doomsday Clock — and series writer (and president of DC Films) Geoff Johns stars in a new video explaining how the story came to be.

"Both of us (Geoff Johns and Artist Gray Frank) were, rightly so, nervous about it," Johns says of the 12-issue series.

You can read more about "Doomsday Clock" at The Hollywood Reporter.