Rendering a tracked scene without background I've tracked a scene in Blender so that I could animate and adjust material lighting to an object placed in the scene. Once the footage was tracked, I set up a tracking scene and set the background.

Once I was happy with my animation I wanted to render with Cycles just the object animated without the footage in the background. Where can I disable the rendering of the footage?
Unchecking Compositing in the Properties editor > Render tab > Post Processing rollout did solve the problem.
Side note: you can go to the compositing nodes in the Node editor (or choose "Compositing" screen layout) and change/remove the Source Movie to remove video from render.