It is being extended to do film restoration. CinePaint is used for painting of background mattes and for frame-by-frame retouching of movies.
It is the most popular open source tool in the motion picture industry - used in 2 Fast 2 Furious, Scooby-Doo, Harry Potter, Stuart Little and other feature films. CinePaint (formerly Film Gimp) is a free open source painting and image retouching program designed to work best with 35mm film and other high resolution high dynamic range images.
