I'm curious how these work. How do they manage to keep the light in the room from being flooded with blue? With a real skylight, the blue that you see is nowhere near the actual window so you get largely white light in the room, but distancing the blue sky obviously isn't possible with something like these. Even if the blue part isn't illuminated, it's still close enough to the light source that it's going to reflect a lot of blue light into the room, which I feel would ruin the illusion of a "real" skylight.

I'd have to imagine that these don't actually work anywhere near as well as the video - with its full studio lighting - would suggest.