Sony Pictures Entertainment named Tom Rothman as new chairman of its motion picture group, a major move after a massive cyberattack devastated the entertainment giant.
Google and Microsoft joined forces with Sony, using their online might to release "The Interview" film to online audiences despite threats from hackers.
Cyber attacks that ultimately prompted Sony Pictures to scrap the release of a madcap comedy about North Korea are a "serious national security matter."
Ethical arguments and legal threats looked unlikely to deter US media from delving ever deeper into the hacked emails of Hollywood powerhouse Sony Pictures Entertainment.
A group which claims to have hacked Sony's servers demanded that its movie studio pull a soon-to-be-released comedy depicting a fictional CIA plot to kill North Korea's leader.
Sony Pictures denounced a "brazen" cyberattack it said netted a "large amount" of confidential information, including movies as well as personnel and business files.