Instruct: Classify a review as either positive or negative.
Query: Compelling

I had not a chance to see the "Firefly" television series, but I did enjoy Joss Whedon's interpretation of the X-men comic series and so I thought I'd give this movie a try. I like Whedon's use of dialogue to build and relieve tension in X-men, and he maintains his ear for good witty dialogue in "Serenity." He also does an excellent job of developing what are essentially comic book characters, and making us care about them and so that when this movie reaches its climax our muscles tense up as we root for our heroes to make it against overwhelming odds.That said, the special effects are really cheesy -- I suppose it's a homage to the campiness of Whedon's style.