Brooks said:

Personally I think that might be too much grain, hard to say how it would look until it's in motion though. To be fair, I'm not a big fan of grain, I kind of consider it a drawback of film (I know in my own still photos it drives me crazy when a shot is really grainy, that's why I used to always use low speed film).

Yes, I've been thinking the grain is a bit much at the moment. I'm working on getting it to be smaller and more fine (maybe upscaling everything to 4k, then adding grain, and then downscaling back to 1080p?). I also might add some sharpening before the layer of grain. The PT lacks details and has a horrible digitally softened look due to the crappy prototype HD cameras they were shot on. Even though TPM was mostly shot on 35mm, the horrible DNR ruins it. If I can get the sharpening and grain just right, the picture will appear more filmic and to have much more detail.