Pregnant Rihanna showed off her blossoming baby bump as she supported her partner A$AP Rocky at the Cannes Film Festival premiere of his new movie Highest 2 Lowest on Monday night.

The singer, 37, and the rapper, 36, revealed they were expecting their third child together at this year's Met Gala earlier this month.

Rihanna - who already has sons RZA, two, and Riot, 21 months, with A$AP - looked happy and healthy as she made a typically late arrival to the red carpet.

She looked great in a ruffled blue dress and strappy heels as her partner sweetly put her arms around her.

They were hit by some bad weather in Cannes however as they walked some of the red carpet in the pouring rain. 

A$AP looked smart by her side as he showed off his sense of style in a black suit and shades. 

Highest 2 Lowest is directed by Spike Lee and follows the story of a music mogul who faces a life-and-death moral dilemma when he gets caught up in a ransom plot. 

It stars Denzel Washington, Ilfenesh Hadera, Jeffrey Wright, Ice Spice (in her film debut), and A$AP.

Dakota Johnson led the glamorous arrivals to the iconic red carpet earlier in the night in a strapless pink tassel dress which was the epitome of elegance. 

The actress, 35, looked sensational in the tiered number which she accessorised with statement earrings while styling her brunette locks into a straight, glossy style.

By her side was her Splitsville co-star Adria Arjona, 33, who wowed in a light green satin gown and silver Tiffany necklace.

Adria later posed with her partner Jason Momoa, 45, who wore a smart white suit, with the couple looking as loved-up as ever.

Model Stella Maxwell also made another red carpet appearance as she dazzled in a deeply plunging black sequin gown. 

Jameela Jamil also made a statement in a light green sequin gown which she wore with a statement ruffled shawl.

This year's Cannes Film Festival is taking place in the wake of Trump's vow to enact tariffs on international films.

Cannes, where filmmakers, sales agents and journalists gather from around the world, is the Olympics of the big screen, with its own golden prize, the Palme d´Or, to give out at the end. 

Filmmakers come from nearly every corner of the globe to showcase their films while dealmakers work through the night to sell finished films or packaged productions to various territories.

'You release a film into that Colosseum-like situation,' says Brazilian director Kleber Mendonça Filho, who's returning to Cannes with 'The Secret Agent, a thriller set during Brazil's dictatorship. 

'You've got to really prepare for the whole experience because it's quite intense - not very far from the feeling of approaching a roller coaster as you go up the steps at the Palais.'

Trump sent shock waves through Hollywood and the international film community when he announced on May 4 that all movies 'produced in Foreign Lands' will face 100 percent tariffs.

The White House has said no final decisions have been made. Options being explored include federal incentives for U.S.-based productions, rather than tariffs. But the announcement was a reminder of how international tensions can destabilize even the oldest cultural institutions.

The Cannes Film Festival originally emerged in the World War II years, when the rise of fascism in Italy led to the founding of an alternative to the then-government controlled Venice Film Festival. 

In the time since, Cannes´ resolute commitment to cinema has made it a beacon to filmmakers. Countless directors have come to make their name.

This year is no different, though some of the first-time filmmakers at Cannes are already particularly well-known. 

Kristen Stewart (The Chronology of Water), Scarlett Johansson (Eleanor the Great) and Harris Dickinson (Urchin) have all unveiled their feature directorial debuts in Cannes´ Un Certain Regard sidebar section.

Many Cannes veterans have returned, including Tom Cruise (Mission: Impossible - The Final Reckoning), Robert De Niro - who received an honorary Palme d´Or 49 years after Taxi Driver premiered in Cannes - and Quentin Tarantino, who paid tribute to low-budget Western director George Sherman.

Meanwhile Scarlett's directorial debut Eleanor The Great, will be unveiled on May 20.

However, in the wake of his legal battle with former co-star Blake Lively, Justin Baldoni is not expected to attend. 

Over recent years the star-studded extravaganza has arguably won more attention for the outfits worn by its celebrity guests than the roster of feature films being screened on the Croisette. 

But new nudity rules, devised for 'the sake of decency,' have been implemented at this year's festival.  

According to organisers, the austere move is an attempt to stifle the celebrity trend for 'naked dresses' - namely provocative outfits that reveal considerably more than they conceal - on the red carpet.

'For decency reasons, nudity is prohibited on the red carpet, as well as any other area of the festival,' states a Cannes festival document.

'The festival welcoming teams will be obligated to prohibit red carpet access to anyone not respecting these rules.' 

The surprise new policy features in a recent festival-goers charter - released with a series of outlines regarding expected public behaviour. 

Guests are expected to converge on the Grand Auditorium Louis Lumière for some of the highest profile film screenings across a packed two-week schedule in Cannes. 

It's understood that the iconic venue now adopts a more conservative dress code, with suits, dinner jackets and floor-length evening gowns generally favoured over headline grabbing ensembles. 

Classic little black dresses, cocktail dresses, pant-suits, dressy tops and elegant sandals, 'with or without a heel', will also be permitted.  

While the decision to implement a more stringent policy will be a first, it is not known if French TV broadcasters, wary of airing nudity, played a role in its enforcement. 

Major red carpet events, including the Cannes Film Festival, are aired in France by France Télévisions.

Recently attracting more models and influencers than actors and filmmakers, the annual ceremony has seen an increase in risqué red carpet fashion statements. 

In 2021, American supermodel Bella Hadid bared her cleavage in a  plunging black gown while attending a screening of Tre Piani (Three Floors).

She pulled a similar stunt three years later, with guests at the 2024 gala left speechless after she attended the premiere of Donald Trump biopic The Apprentice completely braless beneath a sheer brown evening dress.