Have you ever wondered what it takes to become a superhero—or a supervillain? SELF sat down with María Gabriela de Faría to find out how she trained for the role of the Engineer in “Superman.” Keep watching to find out how she built muscle, stunt trained, worked with a nutritionist, and mentally prepared for the role. #Superman #Engineer #MaríaGabrieladeFaría #LoisLane #LexLuthor