Picking up where the first Underworld left off, this similarly action-packed sequel continues to chronicle the centuries-old war between the Death Dealers (vampires) and Lycans (werewolves). Selene (Kate Beckinsale), the sexiest vampire ever to fill out a black latex bodysuit, joins forces with Lycan hybrid Michael (Scott Speedman). Their assignment: to foil Marcus (Tony Curran) before he can free his Lycan brother, William (Brian Steele), from eternal imprisonment. Once again, returning writer-director Len Wiseman has the characters accomplish this task with much martial-arts mayhem and bloodletting; Evolution's budget must have allowed plenty of money for the gooey red stuff, because it's splattered around indiscriminately. The fight scenes -- all choreographed and edited to the nines -- clearly took precedence over such script considerations as logic, but filmmakers in the vamps-vs.-werewolves biz rarely favor substance over style. Character actors Derek Jacobi and Bill Nighy lend their formidable talents to the ensemble, and their presence is welcome. Like them, Beckinsale (whose steamy love scene with Speedman is the movie's one non-lethal highlight) emerges with her dignity intact and makes Evolution a worthy successor to the original.