IGN: Serenity's Future: Movies or TV?

As with most things in Hollywood, it all comes down to money....

If the story continues, Whedon doesn't know what form it would take. Television is really the ideal medium for his style of storytelling, but it takes a lot more control out of his hands and puts it in the hands of executives, a lesson he learned only too well the first time. Says Whedon,

I love TV. It's a totally different mode of storytelling. It's rich and textured in a way that movies never will be. It's absolutely glorious, but it's a hard, hard business and I felt unwelcome in the landscape on TV."

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