A conservative group is putting another $300,000 behind an ad campaign to promote an anti-Terry McAuliffe film, hoping to boost interest in the documentary in the vote-rich Washington suburbs.

The 29-minute film, “Fast Terry,” was released this summer by Citizens United in the heat of McAuliffe’s (D) campaign for Virginia governor against Attorney General Ken Cuccinelli II (R).

The documentary focuses on two recent McAuliffe business ventures: GreenTech, the electric car company he co-founded that is now under federal investigation (McAuliffe resigned as company chairman in December, and there is no evidence that he personally is under investigation), and Franklin Pellets, a wood pellet company created by McAuliffe that has yet to get off the ground.

Citizens United previously spent six figures to air an ad promoting the film statewide and on the Internet. This time, the group is putting $300,000 exclusively into airing the spot on Northern Virginia television, beginning Wednesday and running for a week.

McAuliffe’s campaign has dismissed “Fast Terry” before, with spokesman Josh Schwerin telling the Virginian-Pilot that the film was full of “misleading attacks” and an “attempt to smear a candidate and call it a film.”