fact lying... at least as I would define it.
They interviewed the owners and then re-edited the tape to make it look like they were silent and could not answer the questions posed to them:
http://bearingarms.com/bob-o/2016/09/13/breaking-katie-couric-sued-12-million-defamation-anti-gun-documentary/
An unedited audio recording of the interview reveals that—contrary to the portrayal in the film—the VCDL members had immediately begun responding to Couric’s question.
In the filing, the VCDL, Daniel L. Hawes, Esq., and Patricia Webb allege that the filmmakers knowingly and maliciously manufactured the fictional exchange by splicing in footage that the filmmakers took surreptitiously after telling the interviewees to be silent for ten seconds so that recording equipment could be calibrated. The filing also contains side-by-side screenshots of the film’s footage of the VCDL members and anti-gun advocates, alleging that the filmmakers manipulated lighting to cast shadows on the VCDL members and to make them appear sinister and untrustworthy. “We were horrified to see how Couric and her team manipulated us and the video footage to make us look like fools who didn’t stand up for the Second Amendment,” said Mr. Philip Van Cleave, President of the VCDL. “We want to set the record straight and hold them accountable for what they’ve done. You shouldn’t intentionally misrepresent someone’s views just because you disagree with them.”