The filing follows another cars 2 full movie lawsuit this week from two other former Sony employees accusing the studio of being negligent by not bolstering its defenses against hackers before the attack. It claims emails and other leaked information show that Sony's information-technology department and its top lawyer believed its security system was vulnerable to attack, but that company did not act on those warnings. Sony potentially faces tens of millions of dollars in damages from a class-action lawsuit, said Jonathan Handel, an entertainment law professor at the University of Southern California Gould School of Law.

In "The Interview," Rogen and Franco star as television journalists involved in a CIA plot to assassinate North Korean leader Kim Jong Un. Speculation about a North Korean link to the Sony hacking has centered on that country's angry denunciation of the film. Over the summer, North Korea warned that the film's release would be an "act of war that we will never tolerate." It said the U.S. will face "merciless" retaliation.

The film was slated to hit theaters nationwide on Christmas Day. It premiered in Los Angeles last week.

But on Tuesday, Rogen and Franco pulled out of all media appearances, canceling a Buzzfeed Q&A and Rogen's planned guest spot Thursday on "Late Night With Seth Meyers." A representative for Rogen said he had no comment. A spokeswoman for Franco didn't respond to queries Tuesday.