Had a few minutes to mess around with one of Gunleik Groven's shots. Thought I'd walk you through it.
You can find the original R3D here:
Please Note: This is not a professional grade. This was never meant to be professional grade. Any nodes or adjustments are for entertainment purposes only.
If you are working on footage and aren't getting the same results it is probably because your shot includes some motion. Motion means you need to be more precise. I'm just being lazy. Don't follow my bad habits.