We've seen the teasers, but now the first full-length trailer for The Wolverine is here, and... wow. Viper? Silver Samurai? Jean Grey? World War II? Bullet trains? Ninjas? The Wolverine has all of that and more.
Admittedly, I'm not sure how I feel about this "Wolverine becomes mortal" thing, but I really like how depressed he is at the beginning of the movie. After the events of X3 and X-Men Origins: Wolverine, I was pretty depressed too, and I only watched 'em, I didn't have to live 'em.