Satire in a bunker and Singing musical? Okay I'm puzzled but intrigued. Nice environmental background (scenery).
At least one or two good actors (especially Tilda Swindon) however they all impersonate caricatures of snobs, helpers, working class...
It's not a sci fi. There is no back story, no depth, no reasoning and for some reason one didn't seem to even miss a meal after barely surviving something outside even if she sings well.
Without spoiling anything, in 3 hours you can expect something like theater with singing and discovering back stories that you probably could have written yourself for someone you hated (especially if you think the global warming should be purely blamed on a few rich people).
The end is maybe the best part of this movie.
