Sixteen years after she starred in her first Whit Stillman period piece, Kate Beckinsale is making another one — she just signed on to star in the director’s characteristically long-gestating Love & Friendship, an adaptation of Jane Austen’s novella Lady Susan. (The movie’s title comes from another Austen novella, confusing bookstore owners everywhere.) Beckinsale’s replacing Sienna Miller as the formerly titular Lady Susan, a beautiful widow in 1790s England trying to land husbands for both herself and her daughter. Chloë Sevigny is playing her friend, which means that this movie is officially a Last Days of Disco reunion, only set in a place where the sexual mores are just slightly more constrained.