Green Screen Photography, software and tips
whisperingwillow:

Étretat is a commune in the Seine-Maritime department in the  Haute-Normandie region in northern France. Étretat is best known for its  cliffs, including a famous natural arch. These cliffs and the  associated resort beach attracted artists including Eugène Boudin,  Gustave Courbet and Claude Monet, and were featured prominently in the  1909 Arsène Lupin novel The Hollow Needle by Maurice Leblanc.

whisperingwillow:

Étretat is a commune in the Seine-Maritime department in the Haute-Normandie region in northern France. Étretat is best known for its cliffs, including a famous natural arch. These cliffs and the associated resort beach attracted artists including Eugène Boudin, Gustave Courbet and Claude Monet, and were featured prominently in the 1909 Arsène Lupin novel The Hollow Needle by Maurice Leblanc.

Green Screen software for Mac (for photos)

Easy green screen software for Mac (starts at $50)

http://www.chromashop.com/

photojojo:

Greeat examples of using The Golden Mean for compositing photos.
The Lazy Rule of Thirds | Jake Garn Photography

photojojo:

Greeat examples of using The Golden Mean for compositing photos.

The Lazy Rule of Thirds | Jake Garn Photography

lloydkbarnes:

Greenscreen « Helmut Smits … grass is used as a greenscreen to increase the already large amount of commercial messages in and around football matches