I remember watching a scene from a (probably) horror movie on TV many years ago. In it, a man is asking a young boy what he's drawing and the boy describes the picture. And then the guy points at the drawing of the sun (which is in blue) and asks what that is and the kid says "That's the blue sun" or something like that.
It's not that old, I saw it in the 90s. Definitely color and most probably American actors but I saw it dubbed in my language so I can't say but I'm pretty sure it was a Hollywood flick