Lion trailer featuring Patel, Mara, Wenham and Kidman The Weinstein Company has released the trailer and poster for Lion, based on the non-fiction book “A Long Way Home” by Saroo Brierley. You can view the Lion trailer and poster below. Lion is about a five-year-old Indian boy who, after a wrong train takes him thousands of miles away from home and family, survives many challenges before being adopted by an Australian couple.