Desc: Greta Thunberg: Rebel with a Cause: Directed by Jordan Hill. With Cheril Lee, Greta Thunberg. No matter how small, any one voice can make a world of difference. Follow Greta Thunberg's incredible true story as she went from lone teenage rebel to international revolutionary icon. Never afraid to speak the harsh and terrifying truths of impending climate disaster Greta is taking on the world for the ultimate cause.