About halfway through Once Upon a Time in Hollywood, a shaggy-looking man approaches the Polanski residence on Cielo Drive. Jay Sebring (Emile Hirsch), friend of director Roman Polanski and his rising star wife Sharon Tate, answers the door. “Who is it, Jay?” asks Sharon from the hallway, played in the film by Wolf of Wall Street star Margot Robbie. “It’s ok, honey. It’s a friend of Terry’s,” Sebring answers, clearly skeptical of the stranger standing in his friend’s driveway and eager to be rid of him. The “Terry” refers to record producer Terry Melcher, friend of Beach Boys frontman Brian Wilson and previous resident of the house. Viewers familiar with their 1960’s true crime history will recognize the long-haired wanderer as the infamous cult leader Charles Manson though never explicitly named in the film. The scene is based on real events in which Manson staked out the house, later orchestrating one of the most shocking home-invasion murders in American history.