I worked on about 12 shots that were primarily in the opening of the movie and the last dance sequence. For one of my harder my shots (shown in the image below), I was responsible for keying out a giant projection screen for a screen replacement (in the opening sequence), and integrating the flurry chipmunks to the background. Some of the integration work includes roto, removing prop/light spots on the plate, creating holdouts, tracking, graining and color corrections.