Sky Captain and the Films of Tomorrow

professorfalcon writes "Foxnews.com has an interview with the stars of Sky Captain and the World of Tomorrow. They talk about their experience hugging a green screen for the entire film, and how the movie is 'unlike anything most audiences have seen before. It uses no sets, only computer generated imagery.' So most audiences didn't see Star Wars?"

Comments

Re:Isn't that a "blue" screen?

[bigbigbison]

Yes, it was blue. An on "set" picture shows them in front of the blue screen.

Chroma Key

[DragonHawk]

"So why did green take over? Is green dye just cheaper or is there a technical reason behind it?"

The technology of blue/green/organge/whatever screens is called "chroma key". The computer knows that anything of the key color is "background" and should be replaced with other imagery. They use those bright, stand-out colors for that reason -- those colors are unlikely to conflict with real actors or props. The computer could replace another color, e.g., black, just as well, but black appears normally all over the place.

They use the same technology for the "magic weather maps" you see the meteorologist stand in front of during modern TV weather reports. The map isn't really there; the meteorologist stands in front of a color screen, and the map is composited in electronically. You can occasionally see a goof where some part of the meteorologist's wardrobe is too close to the screen's color, and the map "bleeds through" and the person appears "hollow".