For now, here is a video playing on all 6 sides of a cube ? The video is a clip from a 3D modelling program called Blender3D. This is a FREE 3D modelling program (very comprehensive and take a lot of getting used to, but the models are often stunning. ( ). The video below is a clip from one of their tester videos, which was one of their test projects. Part of a much bigger animated film.
It has sound and it must be said that no animals were hurt during the production of the video, nor will they be hurt during any playing of said video!!