Remember back in the old days when holograms were the wave of the future? Sadly, those days are long gone, replaced by stereo 3D glasses and crappy movies shot in 3D HD.
Motherboard has a documentary on Doctor Laser (really Dr. Sapan) who, at about 20 minutes in, shows how to make real holograms. The artform never really took off – I think the bandwidth was too low to really grab anyone’s attention – but I suspect we’ll be soon seeing real life holograms in the next few years so Doctor Laser can get cracking again.