Interesting concept. An hour long music video sans dialogue. OF course I am talking about Daft Punk’s Interstella 5555.
Actually, I just found that last night and downloaded the ‘movie’ today. Not bad. It reminds me of the kind of stuff Jean Michael Jarre was doing back in the eighties. (And Enigma did on several albums.) Basically one long song/performance, all linked together around a common theme. The link above is the first part of the vid, you’ll have to find the rest yourselves.
ETA: I suppose that this should probably be in the books/movies thread. If one of you magic mods could please move it for me?