"Good" is subjective, and doing an IMDb search on the keyword "werewolf" will call up over 500 movies, too many to be listed here. A good place to start might be with Werewolf of London (1935), one of the first werewolf movies ever made. It features the same artist who did the makeup for Larry Talbot in Universal's seminal werewolf movie The Wolf Man (1941), which was remade in 2010 as The Wolfman. The Howling has been cited as THE werewolf movie, along with An American Werewolf in London (1981, same year) as reawakening the werewolf genre. Both movies were followed by The Company of Wolves (1984) (a retelling of Little Red Riding Hood), Stephen King's Silver Bullet (1985) (strongly recommended), Teen Wolf (1985), Wolf (1994), and Bad Moon (1996). More recent movies recommended by viewers include Dog Soldiers (2002) and the Ginger Snaps series—Ginger Snaps (2000), Ginger Snaps 2: Unleashed (2004), and Ginger Snaps Back: The Beginning (2004). Although not exclusively about werewolves, the series of movies following Underworld (2003) and Twilight (2008) have also added immensely to the genre. A real treat can be found in Paul Naschy's Spanish Hombre Lobo series, in which Naschy plays Waldemar Daninsky, a sympathetic character who has been cursed to live as a werewolf. There are almost a dozen movies in the series, but the classics include the earlier ones: Las noches del Hombre Lobo (1968), La marca del Hombre Lobo (1968), La noche de Walpurgis (1971), La furia del Hombre Lobo (1972), Doctor Jekyll y el Hombre Lobo (1972), and El retorno de Walpurgis (1973). If you can find them, they provide a different slant on the killer werewolf.