Natalie Portman is tipped for Oscar glory with her role in acclaimed new drama Jackie.

The Black Swan star plays Jackie Onassis in the film, the English-language debut from Chilean director Pablo Larrain, which examines the days following the assassination of John F Kennedy. The film-maker’s previous work includes The Club and No.

After the film premiered during the Venice film festival to positive reviews, Portman is being tipped for awards success with Variety’s Guy Lodge praising her performance as “meticulously shaded” while The Hollywood Reporter’s David Rooney called it “astonishing”.

The film is a return to form for Portman, who has struggled in recent years with the poorly received western Jane Got a Gun and middling reviews for her directorial debut, A Tale of Love and Darkness. The actor’s forthcoming slate includes Alex Garland’s sci-fi thriller Annihilation and Xavier Dolan’s starry drama The Death and Life of John F Donovan.

Portman joins Emma Stone in the race for best actress, with her role in musical La La Land also gaining buzz at Venice.