do they speak color ?

In their sci-fi Billy Roisz and Dieter Kovacic pose a question if we will ever be able to communicate across the time and space. Inspired by the communication of cephalopods, they experiment with conveying messages using lights, colours, pheromons, sounds and movements instead of words, and they demand that we receive the signals by our whole bodies, just like octopuses. (Ji.hlava International Documentary Film Festival)