From director Christopher Nolan is "Interstellar," a movie about a group of space pioneers on an expedition to find a new home in a galaxy beyond the Milky Way. Matthew McConaughey's character, Cooper, is an ex-pilot-turned farmer who leaves his family on Earth to lead an expedition team. In one of his first major roles, Chalamet plays the young version of Cooper's son, who gets left behind when his dad goes on his history-making mission.