Natalie Portman and Julia Roberts gave each other hilarious gift after working on 'masterpiece' film that's set to leave Netflix

Natalie Portman and Julia Roberts starred in a 2004 romantic drama together and bonded over their characters so much they bought each other specific gifts.

Written by Patrick Marber (The Critic), the movie is based on Marber's own award-winning 1997 play with references to Wolfgang Amadeus Mozart and Lorenzo Da Ponte's 1790 opera Così fan tutte.

The film was directed by Mike Nichols (The Graduate) and produced by Nichols alongside Cary Brokaw (The Resident) and John Calley (The Da Vinci Code).

It features an all-star cast of Julia Roberts (Leave the World Behind), Natalie Portman (V for Vendetta), Jude Law (Eden) and Clive Owen (Cleaner) - with Owen and Portman winning awards for their roles, alongside a win for the cast as an ensemble.

The flick - titled Closer - marked the first time Portman and Roberts worked together and the actors bonded so much over certain similarities between their characters they ended up giving each other gifts.

What. A. Cast. (Sony Pictures Releasing)

Natalie Portman and Julia Roberts' gifts to one another on set of Closer

In the film, Portman plays the role of stripper Alice and Roberts the role of photographer Anna.

And off the back of their characters' foul use of language, Portman told Interview Magazine she gifted Roberts a necklace at the start of filming which read 'c**t'.

Roberts later reportedly returned the favor at the end of production by giving Portman a necklace reading 'Lil' c**t'.

Iconic.

But if you're still wondering whether to add the film to your 'To Watch' list despite the stellar cast?

The pair reportedly gifted each other necklaces (Sony Pictures Releasing)

Synopsis and reviews of Closer

Well, the story centers on American stripper Alice (Portman) who moves to London and bumps into a man (Law) on the street - to disastrous consequences, but with quite a sweet outcome. The question is, will the relationships formed withstand the test of time?

The film was a hit at the box office, grossing over $115 million worldwide on a $27 million budget, as per Box Office Mojo.

Owen won a British Academy Film Award for Best Actor in a Supporting Role in Closer. He and Portman also won Golden Globes for Best Supporting Actor and Actress.

The ensemble won an award with the National Board of Review and Owen another with the Las Vegas Film Critics Society - among others.

And the film has received an outpouring of support online.

As a Twitter user said: "I f**king love this movie."

And another simply resolved: "Gotta watch this now."

Closer is set to leave Netflix on June 1.