The 3-Way Color Corrector in Final Cut Pro is an amazing tool to add that final touch to your movie project. In the following steps I will show you a simple way to add versatility to your color correcting and how to achieve that desired cinematic look.
Step 1: Bring Clip Into Timeline
Let's get started!
Double click on the clip in the Browser window to bring it into the Viewer window. Create your in and out points then drag the clip into your timeline.
For my clip I chose a shot of the Saw Stop table saw at Techshop in Menlo Park.
Step 2: Duplicate Layer
When you have the clip you want to color correct in your timeline, you need to start off by duplicating the layer and placing it directly on top. You can do this by holding ALT+SHIFT, clicking on the clip, and simply dragging it directly above in the next layer.
Step 3: Adding the Tint Filter
Highlight the bottom layer by clicking on it. Then click on Effects> Video Filters> Image Control> Tint.
Step 4: Overlay Top Layer
As you can now see in your Canvas window, your clip hasn't changed yet. The only visible change is the tinted, bottom layer which you can see in the Viewer window. In the next step the fun begins and you'll start seeing your clip transform.
Right click on the top layer go down to Composite Mode then select Overlay.
Step 5: Aplying 3-Way Color Corrector
As you can see in your Canvas window, your clip has officially changed! In some cases, depending on the lighting, original color of your footage, and the effect you are looking for, you can leave it like this. We are going to take it a step further.
With the top layer highlighted, go to Effects> Video Filters> Color Correction> Color Correction 3-Way and apply the filter to your clip.