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Rubber-Suit Monsters Fade. Tiny Tokyos Relax. – NYTimes.com.

I’ve never really felt that you could replace an actor in a well-made costume with digital characters an have the same visual appeal. Perhaps on the low end, with movies like the Ultraman series, you can get away with the less natural “feel” of digitally-created characters. But in other situations (e.g. digital Jeff Bridges in Tron) the uncanny valley affect is too disruptive of story-telling.

Examples abound of incredibly compelling costumes (ser Pan’s Labrynth). Of course, costumes themselves will have a hard time competing with the beauty of a digital character. I think the best opportunity for directors to see their vision come to life is to use a hybrid approach, i.e. digitally enhance a costumed actor.