In one sense, "Inequality for All" is absolutely the film of the moment. We are living through tumultuous times. The economy has tanked. Austerity has cut a swath through our lives.

And in a parallel universe, a cohort of alien beings — bankers, as we know them — are currently engaged in trying to figure out what to spend their multimillion-pound bonuses on. Who wouldn't want to know what's going on? Or how it happened? Or why? Or if it is really true that the next generation down is well and truly shafted?

And yet ... what sucker would try to make a film about it? It's not exactly "Skyfall." Where would you even start? Because there are some films that practically beg to be made. And then there's "Inequality for All"; the kind of film that you can't quite believe that anybody, ever, considered a good idea, let alone had the passion and commitment to give it two years of their life.