Astronauts may have debunked the age-old myth that the Great Wall of China is the only man-made object visible from space, but if they were to take a look right now, they might be able to see James Cameron's'Avatar.' His blue giant has been circling the globe in a neon blur for nearly four weeks now, vacuuming coin-of-the-realm out of the hands of moviegoers from Argentina to the Ukraine.

But, wait. Before we declare 'Avatar' the Greatest Attraction in the Solar System, let's acknowledge the sizable minority of Earthlings who are not impressed.