Completely AGREE with Sym-Cha about the blue/brown toying (and J.J. knowing about it and he -or someone there- knowing EXACTLY what they're doing with this 'color-tease' thing)
It's kinda' frustrating, YEAH... But also kinda' FUN
Something else I wanted to add to this conversation, though:
In the video showing the behind-the-scenes of the shoot, Ford hugs Annie and his jacket rides up a little when she puts her arm around him...
Definitely DOES look like a waist-length jacket and not a long duster style coat (of course he might wear several different coat in the movie, too...)