Writer and Oscar-winning director Quentin Tarantino will tackle the Manson murders in his next film. He confirmed he's done writing the script and casting will soon get underway.

Quentin Tarantino wants Brad Pitt and Jennifer Lawrence to lead his new movie, according to The Hollywood Reporter. The director has worked with Brad Pitt before in the 2009 film "Inglourious Basterds." The news also cited Jennifer Lawrence was approached about the film project just after Labor Day.

Deadline reported that Margot Robbie was also asked if she’s interested in star in the still-untitled movie.

No one from Hollywood, however, has read the script so far.

What are the Manson murders?

It was one of the most horrific real-life stories in Hollywood. Charles Manson headed a cult in the 1960s that had been responsible for the murder of actress Sharon Tate. She was the wife of director Roman Polanski.

Sharon Tate was pregnant when Charles Manson's followers, upon his orders, killed her in 1969. The perpetrators were sentenced to life imprisonment in 1971 at the California State Prison in Corcoran. Sharon Tate was also not their only victim during that attack among residents of Benedict Canyon as at least five more people died that night.

Charles Manson is currently 82-years-old. He’s been incarcerated for over 45 years.

Will this be Tarantino's last movie?

Quentin Tarantino had been working on writing this film for a while but it will be his first story based on a real-life event. The director's other film credits include "Pulp Fiction," "Django Unchained," "The Hateful Eight" and the "Kill Bill" franchise.

In 2016, Quentin Tarantino said he's considering quitting the movies soon.

"Hopefully, the way I define success when I finish my career is that I'm considered one of the greatest filmmakers that ever lived," he told an audience during the Adobe Max Q & A, as per Entertainment Weekly.

Is there another Manson murders film?

But Quentin Tarantino is not the only one planning to do a film about Charles Manson or his victims.

Another film called "The Get" will also delve on the event and it comes from a new production outfit called the Bohemia Group Originals (BGO), as per Variety.

This movie will focus on the infamous Charles Manson TV interview in 1981 with late night host Tom Snyder, which shot up to 24 million viewers when his show usually gets only six million viewers. It was a historic moment on television.

Casting for "The Get" has not yet been announced.