All the President's MenGoofs
When Bob Woodward first appears in court to cover the appearance of the men caught at Watergate, the voice of actor George Wyner was dubbed over the voice of the first lawyer Woodward is actually talking to in the scene.
Boom mic visible
A brief sequence shows a 1972 Chevrolet Caprice (with four rectangular taillights) transporting a bundle of Washington Post newspapers through nighttime Washington to the White House, at least until the very last close-up shot of it passing through the gates of the White House, where it abruptly changes to a 1973 Chevy Bel Air (with two square taillights).
Crew or equipment visible
Errors in geography
In a 2007 web discussion on Watergate, reporter Bob Woodward gave the following answer when asked for the biggest factual error in this movie: "The movie is an incredibly accurate portrait of what happened. To limit the number of characters, the city editor, Barry Sussman, was merged into another character. That is regretable, and something Carl Bernstein and I should have fought, because Sussman played a critical role in guiding and directing our reporting."
Incorrectly regarded as goofs
Woodward is typing up a story late in the film and the close-up of the typewriter paper shows the word "criticise". When the wire teletype is printing his story minutes later, it reads "criticize". But Woodward didn't type the story into the teletype. At that time that would have been done manually by somebody else, who could have corrected the spelling as they went.
Above the desk of Carl Bernstein is a large button with the "Baltimore Bullets", NBA logo. The Baltimore Bullets did not move to the Washington D.C. area until the October 1974 season. The film covers the period from June 1972 until the January 1973. Displaying support for a sports team from the city of Baltimore would have been considered gauche by the district's sports fans in the early-1970s.