More than two years after the widely debunked film “2000 Mules” poured gasoline on right-wing conspiracy theories about election fraud, the documentary’s writer and director, Dinesh D’Souza, has acknowledged that its findings were based on a faulty analysis.

Mr. D’Souza said in a statement on his website that the analysis used in the film, which claimed to depict a vast ring of “mules” illegally gathering large numbers of ballots and surreptitiously placing them in drop boxes, was incorrect.

The film’s premise was based on matching surveillance videos from drop-box locations with geolocated cellphone data that appeared to show repeated trips to areas near drop boxes during the 2020 election.

“We recently learned that surveillance videos used in the film may not have actually been correlated with the geolocation data,” Mr. D’Souza, who is facing a lawsuit over the documentary, said in the statement, which he released on Nov. 26.

Despite being swiftly debunked by both Republican and Democratic election officials, the film garnered more than a million views online in less than two weeks after its release in 2022 and eventually grossed more than $1.4 million. A glitzy premiere at Mar-a-Lago drew Donald J. Trump, the once and future president, as well as Republican luminaries and influential figures in the movement to discredit the 2020 election.

The surveillance videos used in the film were obtained by True the Vote, a right-wing election organization that was a partner in producing the film. In a statement on its website on Monday, the group said the film’s central premise “remains accurate” despite the apology.