Leonardo DiCaprio swapped the bright lights of Hollywood for an unassuming pub in London on Thursday night.
The actor celebrated his hit new action-comedy One Battle After Another with a slew of A-listers at The Hart in Marylebone.
The Hart takes its name from the Hart family, who ran a pub on the site in the 1840s. The venue opened with a chic relaunch in October.
DiCaprio was seen rubbing shoulders with stars like director Paul Thomas Anderson, rock royalty Mick Jagger, and actor Jeremy Irons at the Warner Bros party.
The 51-year-old also mingled with James Bond icon Pierce Brosnan and his son Dylan, Olivia Wilde, Hannah Waddingham, Richard Gadd, and Charlie Brooker.
The Shutter Island star has been making the most of his time in London by hitting the exclusive party hotspots in the capital this week.
On Tuesday, DiCaprio promoted One Battle After Another at BFI Southbank.
Afterwards, the star and his longtime close friend Tobey Maguire reportedly partied at members-only club Annabel’s into the early hours.
“Leo came in to Annabel’s and settled in for a big night with his mate. He’d been at the BFI on the Southbank and came for a private dinner,” a source told The Sun.
“It coincided with their Christmas light switch on which was really special. Alexandra Burke performed and it was an amazing evening.
“Leo and Tobey got food as well and, as you’d expect, there were plenty of female fans hanging around to enjoy a drink with them.”
The insider added that the staff at the club “love” DiCaprio because he’s a “big spender and a nice guy”.
He reportedly stayed until around 12.30am and left with Maguire.
One Battle After Another follows a group of ex-revolutionaries who reunite to save the daughter of one of their own after their old enemy resurfaces.
DiCaprio stars alongside Teyana Taylor, Sean Penn and Benicio Del Toro in the blockbuster.

The Titanic star heaped praise on director Anderson during an interview at the BFI.
“One of the fundamentally great things about Paul is he puts a tremendous amount of thought into what he does and I feel like he kind of stews over ideas, and obviously that later manifests itself on screen,” he said.
“But I remember [first] having a conversation with him years ago. He kind of casually came up to visit me and my friend [actor] Lukas [Haas], at my place and we were just kind of talking.
“It wasn’t particularly about a project, but I could tell he was tuning his fork. There was a reference to maybe working together sometime in the distant future, like this ominous cloud, and I said to my friend Lukas, ‘Do you think we’re talking about a project? I have no idea.”
He said that from that point, “conversations started to build” and the project began to form.