"When I'd point my camera at Zoe's (Saldana) character, I saw a 10-foot-tall blue alien hot chick with a tail raging through the forest. But when I'd look up from the camera, I'd see petite Zoe Saldana in her black leotard running around a grey floor." Moviemaker JAMES CAMERON on the wonder of working with his new computer-generated camera technology while making new film Avatar.