Sunglasses from "Blood Diamond"

I was a watching the movie Blood Diamond the other day (a fantastic watch by the way) and I couldn't help but notice these snappy shades. Anyone have any idea of the specific make/model? The closest looking ones I could find were Randolph Engineering Aviators, American Optical Aviators and Ray Ban Caravans, but none of them quite hit the mark.

These sunglasses look a lot like Ray Ban Caravan. The only difference is probably that Ray-Ban RB 3136 has thinner temples.