This isn't the first time the stars have been spotted together on screen, as Robbie starred alongside Pitt in Quentin Tarantino's Once Upon A Time that's a fictional version of Tinseltown during a difficult time leading up to the Manson family murders of 1969.
Robbie played the role of Sharon Tate, the actress and wife of director Roman Polanski who devotees of Charles Manson gruesomely killed. Brad featured in the film as the fictional stuntman Cliff Booth, the sidekick and best friend to Leonardo DiCaprio's washed-up character Rick Dalton.
The movie earned Pitt his first acting award from the Oscars for Best Supporting Actor, although he previously won an Oscar for producing the Best Picture Winner 12 Years A Slave.