I was watching the Spanish subtitled version (which was annoying, as the subtitles cover some of the names and affiliations of the interviewees) when it lost the connection and failed to play.
I've tried to watch it again, but the English only version, only to find that the box at the bottom with the different versions won't disappear, so I can't full-screen the film and try to go back to where I was (the controls aren't accessible, and when I click on it it just plays/pauses). I'm possibly just technically incompetent, but I can't see a way around it other than downloading the whole thing and waiting which is taking ages. Great documentary - just frustrated as I'm trying to see the end!