The chairman of the House Committee on Homeland Security announced Thursday that the Department of Defense and CIA were investigating whether classified information about the killing of bin Laden was released to producers of a movie about the raid. The project, to be released by Sony, is directed by Kathryn Bigelow and written by Mark Boal.

Rep. Peter King (R-N.Y.), who had called for an investigation last summer, released a letter from the office of inspector general at Defense saying they are they are conducting an investigation. Also released was a letter from the office of the CIA’s inspector general, saying that they are developing “a written policy to create a single point of reference that will govern future interactions with the entertainment industry.” The policy apparently came in response to King’s request.

The White House has denied that classified information was released.

The project became a political flashpoint after Sony announced initial plans to release the movie in October, just weeks before the election. Some Republicans suggested that it was a way to boost Obama’s reelection prospects. Pic will now bow on Dec. 19, and is expected to go into production next month.

King said in a statement, “Following a shockingly dismissive response to my request from White House press secretary Jay Carney, I am pleased that the Inspectors General at DoD and the CIA agree with me that potential leaks to filmmakers are something worth investigating and taking action to address.  The leaks that followed the successful bin Laden mission led to the arrests of Pakistanis and put in danger the mission’s heroes and their families.  Privately, individuals in the intelligence and special operations communities expressed support for my request for a probe.  I look forward to an update on the investigation and actions taken thus far.”