CONCORD, N.H. — A new documentary set to be posted online by a super PAC supporting Newt Gingrich accuses Mitt Romney of getting rich at the expense of tens of thousands of American employees at four companies.

The documentary, titled “When Mitt Romney Came to Town,” paints the GOP presidential frontrunner as a corporate “raider” more unscrupulous even than Wall Street executives, preying on the misfortune of people who lost their jobs when his company, Bain Capital, turned around their companies.

“This film is about one such raider and his firm,” the film begins. “His mission: to reap massive rewards for himself and his investors.

“A group of corporate raiders led by Mitt Romney more ruthless than Wall Street. For tens of thousands of Americans, the suffering began when Mitt Romney came to town.”

(The trailer for the film is above. The full version has yet to be posted to the Web site for the film — — but it was shared with The Fix.)

The film focuses on the fate of four companies bought by Bain Capital – UniMac, K.B. Toys, DDI and AmPad – and features interviews with employees who testify to how Romney and Bain affected their lives.

“I feel that this is the man that destroyed us,” says one woman.

The video, which is being disseminated by the Winning Our Future super PAC, also features a picture of Romney speaking French, a clip of him getting his shoes shined on the tarmac next to a large airplane, and even audio of Fix boss Chris Cillizza describing an expansion of Romney’s massive beach house in California.

Indeed, it is a concerted effort to paint the former Massachusetts governor as an elite who lined his pockets by gaming the system and destroying unsuspecting American businesses.

The employees interviewed, who are not named, talk about losing their homes and skipping meals after losing their jobs.

One woman chokes up talking about feeding her family a package of hot dogs while she skips the meal.

“To Romney and Bain Capital it was just another deal,” says the somber-voiced narrator. “To others, it was a pit of dispair.”

Romney and Gingrich tangled at two debates Saturday and Sunday over the 28-minute documentary and super PACs in general. Gingrich has repeatedly accused Romney of giving a wink and a nod to a super PAC supporting his candidacy that has run a series of ads hitting Gingrich.

Gingrich said Sunday that he hoped the documentary his super PAC ran was more truthful than the Romney super PAC ads.

“I can say, publicly, I hope that the super PAC runs an accurate movie about Bain,” Gingrich said. “It’ll be based on establishment newspapers, like the Washington Post, the Wall Street Journal, the New York Times, Barron’s, Bloomberg News, and I hope it is totally accurate.”

Romney said at Saturday’s debate that criticisms of his time at Bain represent an attack on free enterprise.

“I’m not surprised to have the New York Times try and put free enterprise on trial,” Romney said. “I’m not surprised to have the Obama administration do that, either. It’s a little surprising from my colleagues on this stage.”

Added Romney spokesman Andrea Saul on Sunday: “Unlike President Obama and Speaker Gingrich, Mitt Romney spent his career in business and knows what it will take to turn around our nation’s bad economy.”

The pro-Gingrich super PAC, despite Gingrich’s faltering campaign, recently got a huge cash infusion from billionaire casino mogul Sheldon Adelson, to the tune of $5 million. That should allow the super PAC to promote the documentary and run ads against Romney in the runup to the South Carolina primary Jan. 21.

Amy Garder contributed to this report.