Two Wolf Man movies:

WEREWOLF OF LONDON (1935, Dir. Stuart Walker): Doctor Glendon (Henry Hull), English botanist, is bitten by a werewolf while searching in Tibet for the rare, moonlight-blooming Mariphasa plant. Back in London, Glendon discovers he's a werewolf--and the Mariphasa is the only antidote. But, his specimen is stolen by Dr. Yogami (Warner Oland of Charlie Chan fame), a polite but determined Asian who is also a werewolf--the same one who attacked Glendon in Tibet. Oland is great but Hull is unsympathetic. Action scenes are few, and much of the movie is wasted on sappy high- and low-society semi-comic scenes. The whole thing looks like a British drawing room stage play. Not very good.

THE WOLF MAN (1941, Dir. George Wagner): Larry Talbot (Lon Chaney Jr.) returns to England after 18 years in the US, greeted by his father, Sir John (Claude Rains), who wants him to run the family estate. While visiting a gypsy fair, he's attacked by a werewolf (Bela Lugosi). Talbot kills him, but Bela's fortune-telling mother (the inimitable Maria Ouspenskaya) sees the Sign of the Pentagram in Larry's palm; and he's condemned to moonlit monstrosities. Chaney Jr. was an unsubtle actor, but he defined the Wolf Man in this movie, genuinely portraying his agony and his knowledge that he must kill the one he loves most. A well-acted, well directed film.