Kicking off the DICE summit in Las Vegas today was a keynote presentation by Valve head Gabe Newell and Star Trek director J.J. Abrams. At the talk, the two teased that they were interested in working together on future collaborations. "There's an idea we have for a game that we'd like to work with Valve on," Abrams said, while Newell said: "We're super excited about that and we also want to talk about making movies, either a Portal movie or a Half-Life movie."

But how serious are the pair in making their wants a reality? Apparently, pretty serious. "It's as real as anything in Hollywood ever gets," Abrams said. "Which is that we are really talking to Valve, we are going to be bringing on a writer, we have a lot of very interesting ideas."

Read more: Abrams aware of gaming's 'cautionary tales' »

"Return to Ravenholm," aka "Half-Life 2: Episode 4," was a Half-Life 2 episode set in the spooky abandoned town. It's been canceled for a few years now, but we've gotten a better look at the game that could have been thanks to some new concept art and animation tests. It was in development at Dishonored developer Arkane Studios around 2006, but was ultimately scrapped.

Watch: The Half-Life episode that never was »