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Robert Redford at the 2014 Santa Barbara International Film Festival's American Riviera Award ceremony in Santa Barbara, California. He will play Dan Rather in a film about the CBS anchor’s disputed report about former president George W. Bush’s National Guard service during the Vietnam War Image Credit: AP

Robert Redford will play Dan Rather in a film about the former CBS anchor’s disputed report about former president George W. Bush’s National Guard service during the Vietnam War.

Mythology Entertainment says the film is titled Truth, and will be adapted from the memoir Truth And Duty: The Press, The President, And The Privilege Of Power by former CBS producer Mary Mapes. The production company says Cate Blanchett is signed on to play Mapes.

Truth will be written and directed by James Vanderbilt. It’s the directorial debut of the writer of The Amazing Spider-Man, Zodiac and White House Down.

No studio is yet attached to distribute the film. Shooting is expected to begin in the fall.