DUNCAN, S.C. (AP) — Republican presidential candidate Newt Gingrich is calling on an outside group that supports him to edit "inaccuracies" from a film it produced attacking Mitt Romney's tenure as a venture capitalist.

Gingrich says the Winning Our Future political action committee should either remove the inaccuracies or pull the ad off the air and the Internet entirely.

The group, which is run by Gingrich allies, released a 28-minute film earlier this week criticizing Romney's time running Bain Capital. Shorter versions are running on television in South Carolina ahead of the Jan. 21 primary.

Gingrich is under pressure from some Republicans and conservatives to scale back his attacks on Romney's business record.

The former House speaker also called on Romney to tell an outside group supporting him to fix its erroneous ads.