the trivia section contains outright distortions
no pun intended, but re the "bubble" effect, there is no way this is factual since: a) the "bubble" in no way refracts or optically distorts the image seen "through" it; b) the lighting on the "bubble" maintains a constant studio look even though the surroundings are always different; and c) for that desired effect it would be too impractical to maintain/coordinate on both of the 3D camera's lenses while in the ever-changing environs of the shoot (including wind, dust, etc.).
this effect was obviously shot in a dark studio and simply superimposed on the image as easily as any title would be.
either that, or the filmmakers were complete idiots.