The technology is quite complex, but the concept isn't that complicated.
1) The video is shot with a special camera with two - side by side lenses. In use, one lens captures an image, the next image is taken by the lens beside it. During the entire shoot they switch back and forth - left lens, right lens, left lens, right lens... just like our eyes, spacing the lenses slightly apart gives you two slightly different perspectives of the scene.

2) To watch these 3D movies you will need a 3D source (these could be Blu Ray DVD players, satellite or cable boxes), a 3D enabled TV and the shutter glasses.

3) The TV sends a wireless signal to the glasses to sync the shutters with the picture on the TV. The shutter glasses - which operate electronically, there have no moving parts - shut the view from one eye at a time. When the image taken in step one with the left lens, the view to your right eye is blocked. When an image from the right lens is shown, you can't see through the lens on the glasses for your left eye. This 'shuttering' happens very fast, so fast that you can't tell that you can only see through one side of the glasses at a time.

The effect can be stunning. But it might end up being a 'chicken and egg' problem. There needs to be enough great content available before very many consumers will buy the systems. And the companies that make movies and TV shows are sometimes reluctant to make the investment in creating content for a new format until enough consumers own the necessary equipment.

The first year this equipment comes out it will be expensive, but just like almost everything else in consumer electronics, give it a year or two and prices will come down.

Assuming that there is good equipment and there is a decent amount of quality content, would you be interested? Remember, everyone in the room in the room will need to wear a pair of glasses, if you aren't wearing the glasses and watching something that is in 3D, the picture will be unwatchable.