Saturday Jenn and I were lucky enough to snag Opa and Oma as babysitters for the evening so we could go catch a movie. We went to see Serenity and I loved it! The story was great, and followed along with how the 14 episodes of Firefly had built up the plot. I never read the three issue comic book series, so there were some small gaps that I missed, but really you could watch this movie without ever seeing the television show and still enjoy it. I even caught Jenn laughing out loud at a couple of sections of the movie. That's one of the things I really like about Serenity/Firefly... it doesn't rely on special effects to carry the film. Instead, the characters are charming, the dialogue is witty, and the story is intrigueing.
It so hard to give a good description of the show such that someone would be enticed to go watch. I mean, "The adventures of a group of misfits as they do odd jobs and get into scrapes" really doesn't capture it. What really grabs me about the series is how different it is from your typical space opera. This isn't the ultra-clean environment of the recent Star Trek series, nor is it the clear cut Good vs. Evil story of Star Wars. Instead, the division between good and evil, right and wrong are blurred. The crew of the Serenity aren't clean cut, uniform wearing stiffs. Instead, they each have their own individual quirks, and nothing about the Serenity is clean or organized like you might find on the Enterprise (referred to as the Sheraton of the future by Joss Whedon).
I'm not really sure I'm giving a compelling argument to go watch the show. All I can say is, Jenn and I both enjoyed it. If you are on the fence, duck into Blockbuster and rent the Firefly DVD set. Watch a couple of episodes and see if it piques your interest. If it does, you'll love the movie. If not, then perhaps Serenity isn't your cup of tea.