In a clearing, I finally saw it: a prehistoric-looking creature almost 2m tall with a bulky grey body, armour-plated skin, robust legs and hooked horn.

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Still, even with these interventions, the GL feels large, lane-spanning and tall, a creature of barely constrained momentum whose road-holding is never entirely convincing.

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Second, Ari Rapkin, a computer graphics software engineer at ILM, introduces an amazing paradox: What the special-effects crews are doing is often not emulating physics but tweaking it--because storytelling is better served by showing the audience what it expects, not what would actually happen if a 3-foot-tall creature drew his light saber.

FORBES

Sam Worthington stars as a former Marine paralyzed from the waist down offered the chance to have a healthy body again by becoming an "avatar" -- a 10ft tall, blue-skinned creature genetically engineered to resemble the planet's humanoid life forms.

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