Yeah... I wonder how many you can spot. When I saw the framing the photographer was setting up, I snuck one particular guy into the shot on purpose... just on the edge.
Offtopic, but I work at Disneyland and when the first film came out we had "Jack Sparrow" appearing in the Park every day.
The first time I saw the costume I was amazed at how authentic everything looked- it was for a photo shoot a few weeks before the character debuted in the Park- and I was told that everything the model was wearing were actual items from the filming. Who knows! People make claims like that all the time.
It was almost certainly a different situation when the character became full-time in the Park, because they would have to keep several costumes in stock to fit a variety of actors. I know nothing about the costume and am no judge, but here I am posing like a fan-boy with one of the Disneyland Jack Sparrows (within a year of the original movie coming out).
The fabric of the frock coat is very interesting, and has a nice rustic textured look to it, in person.