I'm curious if anyone knows of an example of this technique used in a film. I've read that it's used in the movie Speed RAcer, but I've yet to see that movie. I know it's kind of a lame reason to want to watch a movie, but now I want to see it just to see how this effect plays on screen.
For those who aren't familiar with the concept; Let us imagine a shot in which a character is rather close to the lens in about a MCU. The focus is on him, we're at a F/1.4 or maybe a F/2 with an Variable ND 2.1 in front of the lens. Two shadowy figures walk up behind our foreground character and st