So while I'm in the process of still ripping all my blurays back to my computer, I thought I'd steal a screencap from bluray.com and process it to show off my new film grain method. I should note that the blue lightsabers look a tad too cyan, I accidentally over did changing the blue a bit, otherwise this is getting closer to what you'll see. I'm also having some issues with Obi's skin tones still.

http://screenshotcomparison.com/comparison/35462

This new grain method was created by upscaling the 1080p to 4K (I made the mockup through photoshop CC, so I used the new "preserve details" algorithm) and then carefully denoised the footage to get rid of upscaling artifacts and (slight softening was also added to emulate the softer 35mm texture) then added the grain (through camera raw for this one, but I will use misfire for the real thing). I then downscaled the footage using bicubic to make sure no additional sharpening or smoothening was applied. This allows the grain to be less obtrusive and more natural.