The Joaquin Phoenix Joker movie is still riding high at the box office, and by the end of its theatrical run it might end up becoming the highest-grossing R-rated movie in history.

After another strong performance at the box office in its third weekend, Joker has made more than $737 million worldwide. It needs about $48 million more to reach Deadpool 2's lifetime gross of $785 million that made it the highest-grossing R-rated movie in cinema history.

As THR reminds us, Deadpool 2 made around $738 million globally from its initial run before the PG-13 re-release, Once Upon a Deadpool, helped total receipts reach $785 million.

THR says Joker is expected to make $900 million at the box office when all is said and done, and it could even reach $1 billion, some people said.

Some of the other highest-grossing R-rated movies over the years have included 2003's The Matrix Reloaded ($742 million), 2017's Stephen King movie It ($700 million), 2014's American Sniper ($547 million), and 2004's The Passion of the Christ ($611 million). These figures are not, however, adjusted for inflation.