Sam Esmail’s psychological thriller, Leave the World Behind exudes star power. At the helm, Academy Award winners, Julia Roberts, and Mahershala Ali, not to mention Hollywood heavyweight, Ethan Hawke, team up for a re-telling of Rumaan Alam’s daring dystopian novel. Ahead of the film’s release on December 8, acclaimed director, Sam Esmail, and supporting actress, Myha’la caught up with HELLO! …