Folks reasonably assume footage from behind-the-scenes featurettes are “truth”, but it is now standard practice for studios to alter footage from “making-of” videos.

(These gray screens are actually blue screens on the set of “Superman” (2025).)

@tvaziri what is their motivation for modifying the behind the screen footage? Does it make a difference if the backgrounds are gray instead of blue in this case?
@adeese they want to de-emphasize visual effects