Helen Mirren was not recognisable in photos that were released of her on set as Golda Meir, the Israeli prime minister.
The award-winning actress, 76, wore a crimped grey mane that was tied in a low ponytail as she chewed on a cigarette.
She wore heavy makeup that included thick, ruffled dark eyebrows and olive-tanned skin.
One picture shows the Hollywood star looking strikingly like her character, as she leans over a balcony in a button-down shirt-sleeved dress.
The Ticking-Clock thriller is the basis of the biopic film. It follows Golda Meir’s struggle as a female member of government – during the Yom Kippur War – against the all-male cabinet.
Meir already looks set to be a smash with Guy Nattiv, an Oscar-winning Israeli director.
After Helen was cast as the powerful political figure, the behind-the scenes footage has been released.
Helen spoke about her role saying that Golda Meir “was a formidable, intransigent, and powerful leader.”
“It is a great challenge to portray her at the most difficult moment of her extraordinary life. I only hope I do her justice!”
Guy Nattiv also praised Helen for her acting skills, he said: “I have long been an admirer of the great Helen Mirren.
“She has seamlessly melded into Golda Meir’s personality with amazing talent, intelligence and depth, making Golda Meir look incredible. It is a testament to the incredible woman’s richness and complexity.”
Politically, the picture also includes a star-studded cast Ellie Piercy, Rami Heuberger, from Schlinder’s List, and Camille Cottin from Call My Agent.
The surprise attack on Israel by the Arab coalition, led jointly by Egypt and Syria, was launched on October 6, 1973. It took place on Yom Kippur, which is the holiest day in the Jewish calendar.
Many also know the Yom Kippur war by its Ramadan or Oct war names.
Golda was at the time the Prime Minister of the Country. She was criticised for her preparations for war and she resigned a year later.
The historic figure, who was 80 when he died in 1978 after a four-year battle with cancer, passed away just four years later.
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