The documentary "2016: Obama's America" will expand to about 1,600 theaters after taking in $6.51 million in sales over the weekend and topping analysts' forecasts, writer and co-director Dinesh D'Souza said.
The film, a critical look at President Obama's view of America's role in world affairs, has collected $9.35 million in the U.S. and Canada since it opened in one theater in July, to become the top-grossing political documentary this year, researcher Box Office Mojo said.
Last weekend it played in 1,091 theaters, according to Box Office Mojo.
"There are a lot of areas where this movie isn't even showing," Mr. D'Souza, president of The King's College in New York, said in a telephone interview. "I'm just thrilled to see how the film is striking a chord."
"Obama's America," based on Mr. D'Souza's best-selling 2010 book "The Roots of Obama's Rage," examines influences that shaped Obama's world view, including his time living as a youth in Indonesia and the experiences of his Kenyan relatives under British colonial rule. This past weekend the movie expanded to 1,091 locations from 169 after winning praise from talk show host Rush Limbaugh and the Hoover Institution's Thomas Sowell.
Distributed by Salt Lake City-based Rocky Mountain Productions, the film was made for about $2.5 million. The makers spent another $7.5 million to market it, Mr. D'Souza said in an Aug. 23 interview.
The closely held company also distributed 2011's "Atlas Shrugged," based on the novel by Ayn Rand.
The picture, ranking seventh last weekend, outdrew two new releases: "Premium Rush" from Sony and "Hit & Run" from Open Road Films, according to Hollywood.com Box Office.