Leonardo DiCaprio was spotted enjoying a night out in London, celebrating his new film 'One Battle After Another' with a star-studded gathering at The Hart Pub in Marylebone. The actor, 51, was seen mingling with notable celebrities including Mick Jagger, Pierce Brosnan, Tobey Maguire, Olivia Wilde, Hannah Waddingham, and Richard Gadd. DiCaprio, dressed in a satin shirt and black jacket, appeared in high spirits alongside Mick Jagger, the legendary Rolling Stones frontman, who wore a bright scarf and cap. The event was part of DiCaprio's promotional tour in London, where he also attended a conversation at BFI Southbank to discuss the film, directed by Paul Thomas Anderson. The film, based loosely on Thomas Pynchon's novel 'Vineland,' has received critical acclaim, with DiCaprio praising Anderson's meticulous approach to filmmaking. The movie follows a group of ex-revolutionaries on a mission to rescue a daughter, featuring performances by Sean Penn, Benicio del Toro, Regina Hall, and others. DiCaprio's London visit included private parties at exclusive venues like Annabel’s, where he enjoyed a night with Tobey Maguire, and promotional appearances, highlighting his active engagement with the film's success.