In the new Netflix series “The Altruists,” three-time Emmy Award-winner Julia Garner (“Ozark,” “Inventing Anna”) stars as Caroline Ellison, girlfriend of Sam Bankman-Fried and business partner in a multi-billion-dollar cryptocurrency fraud. Garner talks with correspondent Anthony Mason about being hired to play “the most unhinged people,” and why watching a movie can give her an “endless sense of hope.”