The star of the first two Underworld films, Kate Beckinsale, is attached to the upcoming 4th installment of the series reports Chud.com and Bloody Disgusting. However, it will only be a cameo of sorts. According to BD's sources, Beckinsale is trying to move away from the project and franchise all together and "pass the torch to one of her kindred." Screenwriter John Hlavin has stated that the film will not be another prequel, but will attempt to continue the story between Beckinsale's and Speedman's characters, as well as open it up to a whole new audience. Len Weisman will be returning to direct the film.
Surprisingly, the film will more than likely be jumping in on the 3D craze as well.
It is being rumored that both Michael Sheen and Bill Nighy will also be reprising their roles, but nothing has been confirmed yet. The fourth installment is set to release January 21, 2011.
ecksmanfan: While I rather enjoyed the first two films, the third was just ok. I'm surprised, actually, to see yet another film in this series.