It’s nearly four years since the last Underworld movie was released, but the action horror series is gearing up once more, with the news that Underworld 5 has started production.

As Slashfilm reports, the movie is filming in and around Prague for ten weeks. The film stars Kate Beckinsale once again as vengeful vampire Selene, with Charles Dance and Theo James returning from 2012’s Underworld: Awakening. There was an earlier suggestion that film would be titled Underworld: Next Generation, but the film has not officially been given this title as yet.

The previous movies, which started with 2003’s Underworld, have grossed more than $500 million worldwide. Last year, it was reported that director Len Wiseman was developing two separate Underworld films, as well as a potential TV show.

“There’s some characters that we really like that [will be in] more of a spinoff of some of the characters, like we did with Rise of the Lycans,” Wiseman told IGN. “And then another film is also being developed in the works with Kate possibly as well. And then there’s a television series as well. So it’s all kind of expanding that universe in many ways.”

Underworld 5 is set for release on October 21, 2016. It is directed by Anna Foerster and co-stars Tobias Menzies, Lara Pulver, and James Faulkner.