I wonder what license the image was released under. While this could have been deliberate by Disney, I doubt they would use a (seemingly) very popular design on production material.
Then again, things like this have happened.
Then again, things like this have happened.
This also apply when the "worker" is a boss, but working for a client, he do it in a lazy manner hoping his client won't notice...
http://en.wikipedia.org/wiki/Timbaland_plagiarism_controvers...
[1]http://online.wsj.com/article/SB1000142412788732388430457832...
Edit: Sorry, silly formatting