The NEXUS show at the Phoenix is on Flickr but the link is not that clear.
The photos are "all rights reserved" . Would Creative Commons make it clear they can be mashed up? Maybe this is not expected?
I ask this in general though Nexus is an example.
Is it ok to take video? Ask questions? Often not allowed inside a gallery. Exmouth beach was a good location in my view. Marginal behaviour is ok at the seaside.
maybe there are other video links that relate?