Disney has released 38 photos from Pixar’s Up. Some of the photos you may have seen before. Others, like the photo above, you have not. You can even view some live-action production photos, showing you some of the people behind the film, for instance the actor who plays Russell.

But most interesting is a seven part series which shows the progression of a sequence from concept art, to set modeling, to texturing to lighting to the final shot. Check out all the photos after the jump. Click on any of the images to enlarge.