Warning: This article contains some spoilers aboutOnce Upon a Time in Hollywood.

If you havent seen the film, read on at your own risk!

and period-appropriate sets and cars.

ONCE UPON TIME IN HOLLYWOOD

Brad Pitt and Leonardo DiCaprio in Once Upon a Time in Hollywood.Andrew Cooper/Columbia

But whatOncealso has in spades are its pop culture references, including to some of Tarantinos past work.

Polanski has lived outside of the United States ever since.

In real life, Lee died less than four years later, at the age of 32.

Robbie-Tate

Sharon Tate (left) and Margot Robbie.Silver Screen Collection/Getty Images; Andrew Cooper/Columbia

Emile Hirsch plays Sebring in a number of scenes with Robbie in the film.

InOnce Upon a Time in Hollywood, Timothy Olyphant plays another real-life actor from the show, James Stacy.

Burt Reynolds wasinitially slatedfor the part, but died before he could shoot his scenes.

Steve McQueen, Damian Lewis

Steve McQueen (left) and Damian Lewis.Warner Bros./Courtesy Getty Images; Bona Film Group

Interestingly, the real Sharon Tate is seen in the footage, not Robbie playing Tate.

(Margheriti was also a real Italian film director.)

Its there that Steve McQueen gives his thoughts on Tate and Polanskis marriage, as mentioned above.

ONCE UPON A TIME IN HOLLYWOOD

Andrew Cooper/Columbia

He has it framed alongside the movie posters and other stuff in his house.

Roman Polanski / Rafal Zawierucha

Roman Polanski (left) and Rafal Zawierucha.Sunset Boulevard/Corbis via Getty Images; David Crotty/Patrick McMullan via Getty Images

The Wrecking Crew

Columbia Pictures/Getty Images

Red Apple cigarettes

Red Apple cigarettes as seen in Pulp Fiction.Youtube