I think holograms are interesting. Do you know what a hologram is? It is a three-dimensional image formed by the interference of light beams from a laser or other coherent light source. Did you know holograms can replace movie actors? They are doing this now. The reason they are doing this is when an actor in a movie dies, they use a hologram of the actor to replace them. For an example, in the movie "The Hunger Games: Mockingjay - Part 1," and the upcoming "The Hunger Games: Mockingjay - Part 2," Philip Seymour Hoffman, who played Plutarch Heavensbee, died, so they made a hologram of him and used that in many of the scenes. It was also done with rapper Tupac and they continue concerts too.

Right now the technology is slow but they are improving it every day. Is it just a matter of time before we get a movie that is all made from holograms?