Johnny Depp - Or is it a stunt double??

Took these pics of what appears to be Johnny Depp standing on top of a horse and carriage at greenwich university camous. Filming the fourth pirates of the caribbean.
However, some of my friends are speculating if it's really him or just a double?
I'm no expert, has anyone else got an idea?

http://img137.imagevenue.com/img.php?image=15968_photo1_122_429lo.JPG
http://img258.imagevenue.com/img.php?image=15980_photo2_122_403lo.JPG

Edit: Apologies in advance for the ridiculous images sizes!

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That's his stunt double, he has a different shaped nose. Thank you for sharing your photos with us!

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