Joss Whedon is the creator of and guiding light behind Buffy the Vampire Slayer and Angel. He is also the Oscar-nominated writer of Toy Story, and Speed. Serenity, which he also wrote, is his feature film debut as director. The movie is based on his cult SF TV series Firefly. Here's Joss on why no-one should miss Serenity: "Because it's exciting, funny, scary, surprising, involving and meaningful. Plus, hovercraft chasel"