You can alter the lighting (general ambient, specific spots, color/warmth) of a video using the Compositor Nodes. Even though there isn't a "light" in the nodes-based compositor, I discuss how to enhance and "light" by increasing the brightness/contrast of an image or, using a mask, a portion of an image, much like lights do to a non-shadeless plane. The advantage to nodes is that you can easily enhance only a certain color spectrum, like making a forest look greener, or an ocean look bluer. Masks can be other 1) images via the Image input node, or 2) textures introduced through the Texture input node, or 3) by making a mask in 3D space and introducing it into the compositor via the RenderLayer node. In Advertising, you always highlight the key product.

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