Guys, I've got some pretty cool new info on the black Vince jacket!
In this thread, it was originally believed that the jacket worn for the "I'm Richard Parker's son" and "lovestruck skateboarding" scenes was an olive green Vince jacket dyed by the costume design team.
I found an ad on eBay about a month ago for the exact jacket, yet it was in black! I negotiated with the seller and got quite a good deal on it as well. I already own a green one like the one worn in the movie, but now I have the black one as well!
My theory is that the black variant on the jacket was a much smaller run than the green ones. I haven't seen any evidence, much less a listing, that the black jacket existed as a retail product. I've been to the deepest corners of the internet and have found a handful of green ones and a couple navy ones, but the black one is a new discovery. There hasn't been any mention of these in this thread either, which leads me to believe that the existence of these jackets is a new discovery to the community.