Something Extra From The Series.

The Twilight Film series is based on the novels written by Stephenie Meyer, with the same titles.
(Twilight Saga: Breaking Dawn – Kristen Stewart and Robert Pattinson Knows Teaser Yet?)

The three main characters in the series are (from left) the werewolf -  Jacob Black, starred by Taylor Lautner,  the human girl - Isabella Swan, starred by Kristen Stewart, and the vampire - Edward Cullen, starred by Robert Pattinson.
(Cast members Taylor Lautner (L), Kristen Stewart and Robert Pattinson (R) pose at the premiere of ''The Twilight Saga: Eclipse'' during the Los Angeles Film Festival at Nokia theatre at L.A. Live in Los Angeles June 24, 2010.)

"Twi-hard" Fans set up a camp site at the venue, lining up for a Twilight cast meet and greet event.  obviously this group of fans belongs to Robert Pattinson.
(Robert Pattinson made the scene, sort of, as fans waited in line the night before the "Twilight" event.)

This whole series revolves around a human girl, Isabella Swan, and  a vampire,  Edward Cullen. 
(Blissed-out Teenage Love)

Werewolves in the series are one of the threats to vampires.  Their fights have provided a lot of action scenes in the films.
(Like lycanthropes like this werewolf in Twilight Saga? Read on... New Moon)