Film review: I Am Greta

Sometimes a film-maker gets lucky. I saw a good example earlier this year, watching Knock Down the House. Someone had to be there, filming Alexandria Ocasio Cortez talking about her political ambitions while polishing glasses in a New York bar. If she hadn’t won, the footage might never have been used. As it is, they got to be there to see history being made.

Nathan Grossman is another such film-maker, booking in a couple of days at short notice to film a solo climate protest after a suggestion from a friend who was working with Greta Thunberg’s mum. And so he was there on day one of her school strike outside the Swedish parliament.

There was no way of knowing at that point that Greta would become a media sensation and launch a global movement. In the event, and unlikely though it may seem, that day of filming became…