Hollywood veteran Robert Redford dramatises the fall of former CBS newsman Dan Rather in the latest teaser for “Truth”.

The gripping docu-drama explains the fallout of CBS News airing explosive allegations about George W Bush’s military record in the run-up to the 2004 election, reported Deadline.

Questions about the authenticity of CBS’s allegations would later bring an end to Rather’s 24-year run as anchor of the CBS Evening News.

The film is based on the memoir of Rather’s long-time producer Mary Mapes, who is played in Truth by Oscar winner Cate Blanchett.

White House Down and The Amazing Spider-Man 2 writer James Vanderbilt both wrote and directed Truth.

WATCH: Truth Official Trailer:

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