Few weeks ago, a rumor circulated the net that Gary Whitta would be working with Legendary Pictures to develop a Diablo film. The participation of Gary Whitta hasn't been confirmed, but surprise-surprise. Legendary Pictures website is listing Diablo under the "In Development" section.
It comes to attention, this media-slip comes within a month and a half of BlizzCon 2007. The rumor and hype is a Diablo game will be announced at the Anaheim Convention Center in August 3-4.