Leonardo DiCaprio, 49, puts on a low-key display as he steps out with girlfriend Vittoria Ceretti, 25, after night out at Chiltern Firehouse

Leonardo DiCaprio put on a low-key display on Thursday night as he stepped out of London’s Chiltern Firehouse with his girlfriend Vittoria Ceretti.

The Hollywood actor, 49, was spotted leaving the celebrity hotspot with his Italian supermodel girlfriend, 25, in the early hours of the morning.

Leo kept a low profile as he shielded himself under a black baseball cap and also wore a light blue face mask.

He looked dapper in black trousers and a dark shirt, which he teamed with a blazer and a pair of black trainers as he got into his car.

Vittoria, who is 23 years his junior, cut a glamorous figure in a sparkling black mini dress and knee-high boots.

She pulled a smart black jacket over her shoulders and packed her essentials into a stylish beige Gucci handbag.

Vittoria, who has been a catwalk model for the likes of Fendi and Versace, appeared to be in a jovial mood as she flashed a big smile at her boyfriend Leo.

Leo celebrated his 49th birthday earlier this month and his girlfriend Vittoria joined him and other A-list guests at the star-studded bash.

The pair packed on the PDA and were “clingy and kissing all night,” according to People.

Leo was the life and soul of the party as he rapped and danced for a star-studded crowd, who gathered at a private home in the exclusive neighborhood.

He was seen being hoisted onto a chair during the meeting and later tapping into a microphone to Gang Starr and Nice & Smooth’s 1994 song DWYCK.

Leo – who has a reputation for only dating women aged 25 or under – his model girlfriend and their famous friends reportedly kept the party going until after 4am.

Other stars at the bash included Beyonce and husband Jay-Z, Kim Kardashian, Kate Beckinsale, Rita Ora, Zoe Saldana and Snoop Dogg.

Earlier this month it was reported that Leo is ‘crazy’ about Vittoria, who turns 26 in June, with insiders claiming he is now dating her exclusively because she has ‘all the qualities he looks for in a partner’.

Vittoria has become a sought-after face for advertising and has done campaigns for the likes of Chanel, Prada, Dolce & Gabbana and Moschino.

She has also walked the catwalk with big names like Kendall Jenner, Claudia Schiffer, Iris Law and Imaan Hammam.

Leo turns 50 next year and he recently revealed the one goal he wants to achieve before his milestone birthday.

In an interview with Good morning AmericaThe Titanic star shared his surprising answer after Chris Connelly asked him what he wants to do before he turns 50.

‘You know what? One more movie,” he shared, before re-emphasizing, “One more movie.”

Leo most recently starred in Killers of the Flower Moon, in another collaboration with iconic filmmaker Martin Scorsese.

The film follows the true story of Ernest Burkhart (Leonardo) who becomes responsible for the murder of several of his Native American wife’s relatives as part of a plot to inherit their lucrative oil rights in Oklahoma in the 1920s.

Leo and Martin have previously worked on 2002’s Gangs of New York, 2004’s The Aviator, 2006’s The Departed, 2010’s Shutter Island and 2013’s The Wolf of Wall Street.

Leo also currently has three other projects in pre-production, two of which will also be helmed by Martin.

The first is ‘The Wager’, based on the novel The Wager: A Tale of Shipwreck, Mutiny and Murder by David Grann, the same author who wrote the book on which Killers Of The Flower Moon is based.

Another is called “Roosevelt” and is a biopic of President Theodore Roosevelt.

Leo will also play mass suicide cult leader Jim Jones in a film based on author Jeff Guinn’s book “The Road to Jonestown: Jim Jones and Peoples Temple.”