Ho-lee shit
I really don't know what to say that doesn't have to be put under a spoiler tag. Except maybe, go see this freakin' movie. No, go buy Firefly, watch it all then go see this freakin' movie.
Now here be spoilers.
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First off - because this has got to be the first thing anyone's gonna talk about coming out of this movie anyway - big props to Whedon for shooting the most brutal and shocking death scene I've seen in a movie in years. I mean, what happened to Wash...that was like, Sonny Corleone powerful in terms of how it effected the movie and the audience. I knew going in, from the immediate darker tone of the film that chances are not everybody was gonna make it out alive, and that feeling was confirmed with Book's death...but man, when that happened to Wash I swear to god I was convinced that Whedon just might kill off everybody as a big "I'm taking my ball and going home" gesture to every near-sighted taste-less TV exec who thought cancelling his show was a good idea.
I'm a picky guy, I can pick out some slight complaints if I really have to. Like, let's see, not even a single scrap of information about Blue Sun or the "hands of blue" guys? Caving in and putting sound in space? Nothing about Book's deep dark secret? (though I'm figuring he used to be an Operative, now) And there were many times where it started leaning pretty far away from its original Western sensibilities and deep into Star Trek territory. But I'm just reaching now. All in all it was a great movie, great science fiction. If there's any justice in this world, Serenity should be the beginning of the next Star Wars-type franchise.
Or, hey, maybe someone will wanna make a TV show out of it.