Sorry to resurrect this thread, but I've been looking into this issue again after quite some time and have found new information about it.
In one interview the film editor, the now late, Sally Menke, explained the process of creating film scratches and other film damage for the first part of the movie. I quote:
"SM: We’d take a pen, a needle or some other implement, and scratch the film. Nina Kawasaki, my assistant, would go out and thrash it against the bushes on the driveway. We have video of it; it’s actually kind of funny. We kept asking the lab to make this section dirtier. We never even got it; we were too careful. We should have gotten it dirtier in some places. The lab had a lot of fun, though, not being careful. Want to smoke a cigarette over that? No problem."
This is from the volume 30 of the EDITORS GUILD MAGAZINE.
It seems that there is really nothing fake in Death Proof's "look". It's actual film damage, and I assume real splices, even though she doesn't mentioned the splices.
Another interesting thing is that the end credits feature a negative cutter, titles typographer, and color timer at Deluxe, and no mention of any DI work in any shape or form. It seems like this film didn't go through a regular DI at all . IMDB mentions a 2k DI process though and it could be at the stage of combining it with Planet Terror, using a photochemically finished IP maybe? The fact that print dailies (as seen in DVD/Blluray bonus materials exist of the entire film (even the second half) doesn't suggest a full DI was done.
But DI or no DI , what I wonder is, what sort of elements were they thrashing against the bushes. Would it have been a color timed IP, or prints?
Is there any way to tell from the damage if it's an IP or a print? And how likely would it be that all those tape splices were done on an IP?
Either way it must have been quite a strange workflow.