D is for Darkness?

The dying of the light - Roger Ebert's Journal:

"What can you personally do to be sure you see an ideal picture? Matthew Humpries at Geek.com writes:

• The title of the movie listed by the theater will have a 'D' after it if it is being shown on a digital projector

• If you are in a D movie, look at the projector window when seated. If you see two stacked beams of light it is a Sony projector with the 3D lens still on.

• A single beam of light means no 3D lens, or a different make of projector that doesn't have the issue

• If you see the two beams, then get up and go complain. You paid good money to see the movie, so make a fuss until they either give you back that money or remove the lens. Seeing as that's an involved and time-consuming process, expect a refund."