Lupita Nyong'o is not the only actress discovering how brutal modern franchise fandom can become after a major casting announcement. From fantasy epics to superhero reboots, Hollywood’s newest leading women are increasingly being forced to survive online backlash before their films even reach production. Now Milly Alcock has found herself at the center of that same cycle following her casting in Supergirl: Woman of Tomorrow. Alcock has spent the last several months absorbing waves of online hostility despite reportedly being one of James Gunn’s top choices for Kara Zor El. Industry insiders following the DC reboot process noted early that...