Trailer Watch: “I Am Greta” Follows Greta Thunberg’s Epic Journey

“For many years, people refused to listen to me,” says Greta Thunberg in a new trailer for “I Am Greta.” The spot kicks off with footage of Thunberg’s one-person school strike for climate action outside the Swedish Parliament. Since then, her message has been heard loud and clear — the 17-year-old is among the most…