Sienna Miller had a famously rough time while filming The Mysteries of Pittsburgh last summer, but maybe it was because of her costumes: The first images of the film are out (it debuts this week at Sundance), and although the movie itself looks intriguing, Sienna looks... we don't know how else to say it... bad. It's not that she's not gorgeous, thin, and movie-star envious. It's just that she's finally wearing some outfits she can't manage to rock - a hot purple corset with Sarah McLaughlin hair, a black silk pantsuit with tapered legs - it's as if her character were being punished by Cher Horowitz for bad behavior. Obviously this isn't Ms. Miller's fault, but in a way, it's a twisted relief: If she actually has to work to make herself look stylish, it means there's hope that our personal work can do the same. On another note: The Mysteries of Pittsburgh is one of our favorite books ever, by Michael Chabon. Regardless of the movie's quality (and we hope it's excellent), we would strongly recommend snagging the novel, which was Mr. Chabon's first.