Jessica Chastain has quickly become one of the most in-demand actresses of her generation, and her streak of high-profile films continues with director Christopher Nolan’s Interstellar, which hits theaters this weekend. We spoke with the actress in LA about weathering manmade dust storms while shooting the film and why the real meaning of the movie is found in a much more down-to-earth place than audiences might be led to believe. Jessica also talked about her fast friendship with costar Matthew McConaughey, who she says is “just the kind of guy you want to be friends with.”