Am late posting this week because I was traveling for the holidays. For some reason, when I see this photo, I have the oddest urge to sing me some Sister Sledge ...
I actually watched this a couple of times to see the order in which guns were pulled, and then the order in which they were fired. I found it interesting that Barbossa pulls a gun on Jack, Will pulls a gun on Barbs, which for some odd reason causes Jack to pull a gun on Will (necessitating Will to draw his second bead on Jack).
Confused? Ask Quentin Tarantino ...