Basically what this involves are several projectors exactly aimed at the front of a building projecting complex computer generated animated images. The different projectors are so carefully aligned as to project seamless images. This is already in use in many theatrical productions. You may be asking yourself what kind of projector is strong enough to show a movie on the side of a building? Remember drive-in movies? And just like everything else, those projectors have evolved and can now put out more light and are much smaller. Ain't life grand!! And for those of you who never experienced a drive-in movie, you have NO idea what you missed! -) Click on the image below http://www.youtube.com/watch_popup?v=XVTga6GmbGw&vq=medium#t=74 ΚΑΠΩΣ ΕΤΣΙ ΟΙ ΘΕΟΙ ΘΑ ΕΜΦΑΝΙΣΤΟΥΝ ΣΤΟΝ ΚΟΣΜΟ ΚΑΙ ΑΥΤΟΣ ...................ΚΑΤΑ ΤΑ ΑΛΛΑ ΦΑΝΤΑΣΜΑΓΟΡΙΚΟ ! (φαντασμαγορικό ;;;; φαντασμα....)

Basically what this involves are several projectors

exactly aimed at the front of a building projecting

complex computer generated animated images. 

The different projectors are so carefully aligned as to

project seamless images. This is already in use in many theatrical productions.

You may be asking yourself what kind of projector is

strong enough to show a movie on the side of a building?

Remember drive-in movies? And just like everything else,

those projectors have evolved and can now put out more light and are much smaller.  Ain't life grand!!

And for those of you who never experienced a drive-in

movie, you have NO idea what you missed!  -)

Click on the image below

http://www.youtube.com/watch_popup?v=XVTga6GmbGw&vq=medium#t=74