This allows you to choose a look of your movies right inside the camera, that matches the feel you're going for, instead of having to resort to color grading and further processing inside your video software. That's what I did when I shot a recent mountain bike race. All of these clips are straight out of the camera.
As with stills, I find CLASSIC Neg to be a really useful color profile, especially in the forest. I doesn't have too much contrast, and I just like the way it looks. It has a certain style and enough boldness to add some drama, without going overboard. Let me know what you think.
-Dan