When I wasn't interviewing executives, writing, or walking the floor at last month's San Diego Comic-Con, I was sitting in on panel discussions. The one featuring Geoff Johns was among the more interesting for fans and investors.

In the video below, Johns describes his role as chief creative officer for DC Entertainment, a division of Time Warner (NYSE: TWX) created last September to help the company profit from comics in other media.

Pay attention to how Johns describes the job, to which he was appointed in February. Then remember how Marvel built cinematic brands for Spider-Man, Iron Man, and the Hulk before selling to Disney (NYSE: DIS) last fall.

Johns also confirmed that a Flash movie is in development, hinted at a Wonder Woman flick, and showed a clip for a possible TV series starring the lesser-known armored hero Blue Beetle. Disney and Comcast (Nasdaq: CMCSA) are also working on TV shows based on superheroes.

Johns continues to write comics for The Flash and Green Lantern, and is a consultant on the forthcoming Green Lantern movie starring Ryan Reynolds. (For those unfamiliar, the logo on his hat is that of the Green Lantern Corps.)

Chalk it up to Johns promoting a film that's important for Time Warner. He has good reason to cheerlead. If Ryan Reynolds' emerald gladiator does well at the box office, we could see a lot more DC characters on the big screen.