Payroll, a gritty 1961 UK crime melodrama directed by Sidney Hayers, would seem to be an unpromising candidate for a panda cameo. Billie Whitelaw dominates the picture, not as a criminal but as vengeful bystander Jackie Parker. Parker’s husband, an armored car driver, is killed during a carefully orchestrated robbery. The police have an idea of who’s responsible, but they lack proof. On her own, Parker goes after the suspects one by one, using psychological torture (phone calls, poison pen letters) to break them down. But twenty-odd minutes into the story, the plot softens: