Leonardo DiCaprio had the support of his girlfriend Vittoria Ceretti on Monday, as he led the star-studded attendees at the world premiere of his new film, One Battle After Another, at TCL Chinese Theatre in Los Angeles.

The acclaimed actor, 50, cut a dapper figure in a fitted black suit and button-up white shirt as he arrived on the red carpet.

And while she didn’t pose for photos alongside her famous boyfriend, Vittoria, 27, still stole the show in an elegant white draped gown.

The striking number boasted a thigh-high slit and was slashed open at the sides, flashing a glimpse of the Italian model’s long legs and a hint of side boob.

Dripping in diamonds from a glitzy bangle to her bejewelled serpent ear cuff, Vittoria looked in high spirits as she cheered on Leo from the sidelines, taking snaps of the adoring crowd of fans.

Also turning out to support the film was Leo’s fellow castmembers and Hollywood heavyweights, Sean Penn, Benicio del Toro, Regina Hall and Teyana Taylor.

Leonardo DiCaprio (left) had the support of his girlfriend Vittoria Ceretti (right) on Monday, as he led the star-studded attendees at the world premiere of his new film, One Battle After Another, at TCL Chinese Theatre in Los Angeles

The acclaimed actor, 50, cut a dapper figure in a fitted black suit and button-up white shirt as he arrived on the red carpet

And while she didn’t pose for photos alongside her famous boyfriend, Vittoria, 27, still stole the show in an elegant white draped gown

Benicio, 58, put on a debonair display in a black suit and coordinating collared shirt, complete with a silk tie.

The Oscar winner – who plays Sensei Sergio in the film – was quick to greet his co-star Sean, 65, who looked sharp in a a navy blue blazer and tie.

While Teyana, 34, who stars as Leo’s love interest in the movie, showcased her fashion forward sense of style in a bold leather number.

The singer’s off-the-shoulder gown featured a structured silhouette and layers of draped fabric, as well as matching evening length gloves.

She elevated both the look and her height with a pair of towering platform heel boots, and added some sparkle with a slew of diamond rings and bracelets.

Regina, 54, was the picture of sophistication in a flowing beige gown, boasting a plunging neckline to showcase her décolletage and a corsetted bodice to cinch her in at her tiny waist.

The two stunning actresses posed alongside newcomer Chase Infiniti, who plays Willa, the daughter of Leo and Teyana’s characters.

The 26-year-old ensured all eyes were on her in a satin champagne gown encrusted in an intricate pattern of sparkling beads.

The striking number boasted a thigh-high slit and was slashed open at the sides, flashing a glimpse of the Italian model’s long legs and a hint of side boob

Dripping in diamonds from a glitzy bangle to her bejewelled serpent ear cuff, Vittoria looked in high spirits as she cheered on Leo from the sidelines, taking snaps of the adoring crowd of fans

Vittoria and Leo first sparked romance rumors in August 2023 during an ice cream date in Santa Barbara, and The Wolf Of Wall Street actor was then seen at Milan Fashion Week to support her the following month

Over the course of their time together, Vittoria has been seen on occasion with a ring on her wedding finger, but sources have insisted she and Leo are not engaged

In March, the model admitted she found it ‘extremely annoying’ to be reduced to just ‘Leonardo DiCaprio’s girlfriend’

Speaking to Vogue France , she sidestepped using Leo’s name, instead referring to him simply as a ‘very, very famous movie star’ while referencing his iconic role in Titanic, which she branded ‘iconic’

However Vittoria kept her distance from public labels and shared that the pair’s bond is strong enough to dodge any jealousy

Also turning out to support the film was Leo’s fellow castmembers and Hollywood heavyweights, Sean Penn (right), Benicio del Toro (left), Regina Hall and Teyana Taylor

Benicio, 58, put on a debonair display in a black suit and coordinating collared shirt, complete with a silk tie

The Oscar winner – who plays Sensei Sergio in the film – was quick to greet his co-star Sean, 65, who looked sharp in a a navy blue blazer and tie

The dazzling dress clung to every inch of her incredible figure, while the keyhole cutout showed off her ample cleavage.

Also in attendance was Adrien Brody, who looked dapper in a form-fitting suit and silk shirt, left partially unbuttoned to flash a peek at his chest.

The Brutalist star playfully posed alongside a public phonebox set up on the red carpet, smirking as he pretending to listen in on the receiver.

Wednesday star Gwendoline Christie followed in his footsteps, posing with the phone to her ear while looking effortlessly glamorous in a baby blue silk dress.

The Game Of Thrones actress showed off her long legs in the lingerie-inspired number, which featured a plunging neckline adorned with lace detailing.

Billy Zane also made an appearance, cutting a dashing figure in a sandy-coloured double-breasted jacket, with cream trousers and suede loafers.

Singer and actress Dove Cameron pulled out all the stops for the evening, turning heads in a strapless silver satin number.

The gown featured a front cutout and tiny bow decoration, while the Boyfriend hitmaker teamed it with a matching dupatta around her neck.

While Teyana, 34, who stars as Leo’s love interest in the movie, showcased her fashion forward sense of style in a bold leather number

The singer’s off-the-shoulder gown featured a structured silhouette and layers of draped fabric, as well as matching evening length gloves

She elevated both the look and her height with a pair of towering platform heel boots, and added some sparkle with a slew of diamond rings and bracelets

Regina, 54, was the picture of sophistication in a flowing beige gown, boasting a plunging neckline to showcase her décolletage and a corsetted bodice to cinch her in at her tiny waist

The two stunning actresses posed alongside newcomer Chase Infiniti, who plays Willa, the daughter of Leo and Teyana’s characters

The 26-year-old ensured all eyes were on her in a satin champagne gown encrusted in an intricate pattern of sparkling beads

The dazzling dress clung to every inch of her incredible figure, while the keyhole cutout showed off her ample cleavage

Also in attendance was Adrien Brody, who looked dapper in a form-fitting suit and silk shirt, left partially unbuttoned to flash a peek at his chest

The Brutalist star playfully posed alongside a public phonebox set up on the red carpet, smirking as he pretending to listen in on the receiver

Wednesday star Gwendoline Christie followed in his footsteps, posing with the phone to her ear while looking effortlessly glamorous in a baby blue silk dress

The Game Of Thrones actress showed off her long legs in the lingerie-inspired number, which featured a plunging neckline adorned with lace detailing

Billy Zane also made an appearance, cutting a dashing figure in a sandy-coloured double-breasted jacket, with cream trousers and suede loafers

Dita Von Teese oozed old Hollywood glamour in a draped blue midi dress with attached gloves for added elegance.

The Queen of Burlesque added a black belt to showcase her svelte waist and cat eye sunglasses, completing the look with her signature red lip and bouncy black hair.

Emmanuelle Chriqui put on a busty display in a lowcut sheer lace gown, with a skintight bodysuit underneath.

John C. Reilly looked sharp in a three-piece suit with a hat and a red neckerchief as he arrived with his wife of three decades, Alison Dickey.

While Ron Perlman also graced the red carpet, following his attendance at Venice Film Festival last month, looking smart in a simple grey suit.

And lead vocalist of rock band Red Hot Chili Peppers, Anthony Kiedis, also made an appearance, going casual in jeans and trainers.

Vittoria and Leo first sparked romance rumors in August 2023 during an ice cream date in Santa Barbara, and The Wolf Of Wall Street actor was then seen at Milan Fashion Week to support her the following month.

Over the course of their time together, Vittoria has been seen on occasion with a ring on her wedding finger, but sources have insisted she and Leo are not engaged.

Singer and actress Dove Cameron pulled out all the stops for the evening, turning heads in a strapless silver satin number

The gown featured a front cutout and tiny bow decoration, while the Boyfriend hitmaker teamed it with a matching dupatta around her neck

Dita Von Teese oozed old Hollywood glamour in a draped blue midi dress with attached gloves for added elegance

The Queen of Burlesque added a black belt to showcase her svelte waist and cat eye sunglasses, completing the look with her signature red lip and bouncy black hair

Emmanuelle Chriqui put on a busty display in a lowcut sheer lace gown, with a skintight bodysuit underneath

John C. Reilly looked sharp in a three-piece suit with a hat and a red neckerchief as he arrived with his wife of three decades, Alison Dickey

While Ron Perlman also graced the red carpet, following his attendance at Venice Film Festival last month, looking smart in a simple grey suit

And lead vocalist of rock band Red Hot Chili Peppers, Anthony Kiedis, also made an appearance, going casual in jeans and trainers

In March, the model admitted she found it ‘extremely annoying’ to be reduced to just ‘Leonardo DiCaprio’s girlfriend.’

Speaking to Vogue France, she sidestepped using Leo’s name, instead referring to him simply as a ‘very, very famous movie star’ while referencing his iconic role in Titanic, which she branded ‘iconic’.

However Vittoria kept her distance from public labels and shared that the pair’s bond is strong enough to dodge any jealousy.

She said: ‘It’s something you learn. If what you’re experiencing is real, if you know you love each other, then there’s no reason to be alarmed. Because love protects and gives confidence.’

One Battle After Another sees Leo playing Bob Ferguson, a disheveled and distraught revolutionary who lives in a state of stoned paranoia off-grid with his daughter Willa, whom he shares with Teyana’s Perfidia.

The film follows him as he reconnects with a group of old allies on a mission to track down his daughter, with Benicio playing his sensei, guiding him through a life without fear.

One Battle After Another sees Leo playing Bob Ferguson (pictured) a disheveled and distraught revolutionary who lives in a state of stoned paranoia off-grid with his daughter Willa, whom he shares with Teyana’s Perfidia

The film follows him as he reconnects with a group of old allies on a mission to track down his daughter, with Benicio playing his sensei, guiding him through a life without fear (pictured in film) 

The high-stakes thriller and black comedy also sees Sean starring as Bob’s evil nemesis, Col. Steven J. Lockjaw, and Regina playing fellow revolutionary Deandra

One Battle After Another is an adaptation of Thomas Pynchon’s iconic 1990 novel Vineland, and boasts a hefty production budget of over $130 million

It was written and directed by Paul Thomas Anderson (seen far right) marking the acclaimed director’s first feature since Licorice Pizza in 2021

The high-stakes thriller and black comedy also sees Sean starring as Bob’s evil nemesis, Col. Steven J. Lockjaw, and Regina playing fellow revolutionary Deandra.

One Battle After Another is an adaptation of Thomas Pynchon’s iconic 1990 novel Vineland, and boasts a hefty production budget of over $130 million. 

It was written and directed by Paul Thomas Anderson, marking the acclaimed director’s first feature since Licorice Pizza in 2021.

Originally slated for release on August 8, the film’s premiere has been pushed to September 26.