Science fiction fandom other groups including LGBT communities, libertarians, neo-pagans, and space activist groups like the L5 Society, among many others. Some groups exist almost entirely within fandom but are distinct and cohesive subcultures in their own rights, such as filkers, costumers, and convention runners (sometimes called "SMOFs"). Fandom encompasses subsets of fans that are principally interested in a single writer or subgenre, such as Tolkien fandom, and ("Trekkies"). Even short-lived television series may have dedicated followings, such as the fans of Joss Whedon's "Firefly" television series and movie "Serenity", known as Browncoats. Participation in science fiction fandom often overlaps with other similar
Joss Whedon feel the intimacy of being on a ship as opposed to the grandeur". He used two long steadicam shots for several minutes of the film's opening sequence to establish "a sense of safety in space". In 2006, it won a Hugo Award for Best Dramatic Presentation, Long Form. The elements of science fiction that Whedon wanted to convey were essentially different in kind, and held "a sort of grittiness" and "realism", which he said, together, "get the most exciting kind of film-making". Like "Firefly", the film contained a statement on individual liberty. Critic Roger Ebert observed, "Like "Brave New World"