The key elements include the characters of Rick Dalton and Cliff Booth. Their relationship is central. Also, the setting of 1969 Hollywood with its glamour and decline. And of course, the looming threat of the Manson Family which adds a dark undertone.
It isn't a true story. The movie weaves a fictional narrative within the backdrop of Hollywood, drawing from various elements but not adhering to real-life happenings.
Definitely not a true story. It's a work of fiction that combines various elements to create an engaging cinematic experience set in the Hollywood context.
It's a story set in 1969 Los Angeles, revolving around an actor and his stunt double as they navigate the changing landscape of the entertainment industry.
Definitely not true. The movie creates a fictional narrative set against the backdrop of the Hollywood of that time, with elements of drama and imagination added for entertainment.
Once Upon a Time in Hollywood is not based on true events. It's a creation of the director's imagination, though it might draw inspiration from the atmosphere and culture of that time in Hollywood.