Screen Gems is moving forward with a fourth “Underworld” and plans to film the project in 3D reports Shock til You Drop.
The third film in the series, “Underworld: Rise of the Lycans”, cost a modest $35M yet pulled in $91 million worldwide theatrically (and that’s before DVD/Blu-ray revenues come in) so another film in the series doesn’t sound that surprising.
The site also mentions a tentative release date of January 21st 2011, two years after ‘Lycans’. This would mean that shooting will take place early next year. No word on who if any of the cast of the previous films would return.