Harry from AintitCool.com sends in this tidbit: 'In SKY CAPTAIN & THE WORLD OF TOMORROW - when Sky Captain is coming up behind the 8 robots stomping down the street and is readying his "magneto-bomb" to drop onto one of the robot's legs, if you look at the background of the shots at the Empire State Building, you'll see a fuzzy familiar character scaling the Empire State Building. Looks like Kerry was shooting around the same time that Peter was shooting his new stuff for Kong, and Sky Captain, just didn't have the money to digitally remove that crazy monkey from the shots. I spotted him in two shots.'