3D may be the bright shining future of the movie business, but at the moment it just isn’t bright enough.

That’s not a metaphor. It’s the plain truth.

3D movies -- whether they’re made using the process or converted in post-production -- are simply screened at significantly lower light levels than 2D films.

More and more often, it’s enough to hamper audience enjoyment, make filmmakers wary, and perhaps even slow down the acceptance of a format that is one of the movie industry’s great hopes for the future.

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