The trailer of Dev Patel's upcoming film 'Lion' has been released. The drama film is based on Saroo Brierley's non-fiction book 'A Long Way Home'. Directed by Garth Davis, 'Lion' also stars Nicole Kidman and Rooney Mara. The film, which will be screened at the 2016 Toronto International Film Festival, is scheduled to release on November 25 in the US.