There was once an episode of Seinfeld called “The Serenity Now.” This has nothing to do with it.
What we have here, basically, is a picture I’ve had sitting on the drive for years and didn’t think anything about until good old File Maintenance Time.
From left to right: Kaylee Frye (Jewel Staite); River Tam (Summer Glau); Inara Serra (Morena Baccarin); Zoe Alleyne Washburne (Gina Torres).
Random factoid: Serenity, the film, according to Wikipedia, cost $39 million to make; it earned $38,869,464 at the box office. I figure they probably sold $130,536 worth of posters.