There couldn’t be a more appropriate time to release a film about press holding a government to account. And thankfully, this Oscar season we’ve got one from Steven Spielberg as he directs Meryl Streep and Tom Hanks in The Post, a drama which follows The Washington Post’s exposé of the Pentagon Papers in 1971, revealing the covert involvement of the US government during the Vietnam War.

But what are The Pentagon Papers? What is the true story of The Post? Read on to find out.

David Saunders