By: Trevor Chartrand Director Nathan Grossman takes an observational, fly-on-the wall approach with I Am Greta, a documentary that follows climate-change obsessed Swedish teen Greta Thunberg on her quest to raise awareness for the climate justice cause.  However, much like the politicians who aren’t listening to Greta, the hands-off, reserved filmmaking style fails to become involved enough in the issues to inspire a call to action of any kind.