I just saw Underworld rise of the lycans' and let me tell you it was so worth the case ,.the movie is a prequel to the last two movies and it is about in part about lycans takinghere freedom and it is also iiimpartbout love and defieing what was going on , to make ccchange and really it is about two people a Vampire woman falling in love with a lycan man.
And finding a way to be together or trying. Now I highly think that every one should see the movie, and that you will enjoy it.
Also it also explains how the war started ad fills in some gaps in the last two movies as well.