As seems often to be the case with posters, this one was an awkward size which didn't seem to fit any ready made frames, so bespoke was the only option.
While we usually love using a mount to pick out a colour from a picture, (and we could have had so much fun with this one!) we felt the poster looked perfect without a border. For the frame, we picked out and matched the darkest colour (not black, its actually a very dark blue). Subtle, but works so much better than a black frame.