Blender Film Emulation

A Node Group, with tweakable parameters, to emulate film in blender:

• Grain
• Halation & Glow
• Color
• Lens

Since Version 3 there are also 2 new options to have the grain only appear in dark areas of the image (example a bit further down),

as well as another, slightly different noise type, that can be switched to.

Here are a couple of before & afters:

and another one:

here are also 2 more examples that showcase the difference between the Default Grain Mode and the More Grain in Dark Areas Mode:

Before & after with More Grain in Dark areas:

Before & After with More Grain in Dark areas Off:

also, here is a quick tutorial: