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 the runtime. He and Jed composed the music, parts of which were influenced by Stephen Sondheim. The miniseries was nominated and won numerous awards. Whedon was awarded Best Directing and Best Writing for a Comedy Web Series at the Streamy Awards, a Hugo Award for Best Dramatic Presentation, Short Form, and a Creative Arts Emmy Award in 2009. In 2009, Whedon created his fourth television series "Dollhouse", and explored themes throughout the show that were initially present in an unproduced spec script of his called "Afterlife". The series follows Echo, whose brain is programmed to accomplish various assignments, on her