LOS ANGELES — When the movies get real, moviemakers can count on real headaches.

Mark Boal and Kathryn Bigelow, the team behind a planned Hollywood film about the hunt for Osama bin Laden, were caught up this week in the kind of dispute that more often ensnares journalists. It happened when Representative Peter T. King, Republican of New York, disclosed on Thursday that the Pentagon was investigating whether the filmmakers — who collaborated on the Oscar-winning project “The Hurt Locker” — had improper access to classified material for the still untitled Bin Laden movie.

Mr. King also said that the Central Intelligence Agency had informed him that it was reviewing its guidelines on interaction with the entertainment industry.

Mr. King has cited security concerns in pressing for an inquiry into the release of information about the May 1 Bin Laden raid in Pakistan. But for months he and others have also voiced suspicions that the film, an independent production to be released by Sony Pictures Entertainment, might exploit classified details of Bin Laden’s killing to boost President Obama’s political fortunes.

Originally scheduled to open shortly before the election, the film was moved to Dec. 19 after a hot public debate about its potential for partisan impact.