Meryl Streep and Tom Hanks will reportedly become co-stars for the first time in 'The Post'.

Tom Hanks

Tom Hanks

Steven Spielberg has recruited the Oscar-winning stars for his new movie about the Pentagon Papers, which revealed in 1972 that the US had secretly intensified the scale of the Vietnam War which caused bombings in Cambodia and Laos, and were not reported in the mainstream media.

According to The Hollywood Reporter, the 'Florence Foster Jenkins' actress will portray the Washington Post newspaper's publisher Kay Graham, while the 'Inferno' actor is being lined up to play the paper's editor Ben Bradlee.

The plot, based on real life events, will see the duo take on the American Government for the right to expose the details of the war.

The official biography of the film reads: "Before Watergate, there were the Pentagon Papers. This is the true story of how Washington Post scion Katharine Graham and legendary editor Ben Bradlee overcame their differences to publish the story that would change their lives and forever changed the relationship between the White House and the press."

The movie is being produced by Amy Pascal and scripted by Liz Hannah.

It is the fifth movie Hanks, 60, has done with Spielberg, 70.

His previous outings with the legendary filmmaker were 2015's 'Bridge of Spies', 2004's 'The Terminal', 2002's 'Catch Me If You Can' and 1998 classic 'Saving Private Ryan'.

And Streep, 67, perviously starred in Spielberg's 'A.I. Artificial Intelligence' in 2001.