American Heiress: The Wild Saga of the Kidnapping, Crimes and Trial of Patty Hearst by Jeffrey Toobin:
Between bombings, the comrades achieved something close to a normal life. They were regulars at the drive-in movies that still dotted the region, and on one occasion the Harrises prevailed upon Patricia to go to an anti-Vietnam War documentary. Bill made a spectacle of himself in the theater, bellowing encouragement to the Vietcong forces on the screen. “Eat lead, pigs!” he shouted at the sight of American troops. Even in disguise, Patricia felt compelled to sink down in her seat, out of both embarrassment and fear of being discovered. Still, she had the fortitude to refuse the Harrises’ perverse summons to another film.
“Ask me to do anything, ask me to rob a bank with you,” Patricia told them. “But don’t ask me to go to a movie theater and get arrested watching Citizen Kane.”