I have read that the interference patterns on a piece of holographic film can be cut, and any segment that is cut out will display the entire hologram when a laser is used to produce an image. By this I mean if you take a piece of holographic film and cut out any portion of it, that portion, no matter where it is taken from, can be used to produce the full hologram (however the smaller the portion the more fuzzy the hologram will be that is produced). Does anyone know how the interference waves on a piece of holographic film produce a three d image? Does anyone know how it can be that any piece of the film can be used to reproduce the whole image? I know a laser beam is split and one part of the beam goes to the image and the other part of the beam goes to the film, a mirror is used somewhere or somehow...... Really what I would appreciate is someone explaining to me how a three dimensional holographic image is created and produced and if possible to also answer the question concerning how a part can display the whole. . . There is a book called the Holographic Universe which is where i am getting what i know about holograms from. Has anyone read it? In it the book discusses how the universe might be one huge hologram, but i forget why this suggestion has been made. If anyone can elaborate on this subject I would greatly appreciate it.