Underworld Rise of the Lycans. I just finished watching it and it was great. Lots of fighting scenes.
But there still lots of things they dont explain. Like why arent the lycans ruling in modern times, what happens to Viktor, how did Selen become a Vampire. Lots of stuff that still need explaining. But the movies is about the Rise of the Lycans. Maybe the next movie will be The Revenge of the Vampires lol.