Seth Rogen has expressed doubts about North Korea being responsible for the 2014 Sony hack. Based on the timeline of events and the amount of information hacked, he believes the hack may have been conducted by a Sony employee. Corporate structure Headquartered in Culver City, California, U.S., SPE comprises various studios and entertainment brands, including Columbia Pictures, Screen Gems, TriStar Pictures and GSN. Senior management team Anthony Vinciquerra Chairman and CEO, Sony Pictures Entertainment Tom Rothman Chairman, Sony Pictures Motion Picture Group Motion Pictures and Home Entertainment Sony Pictures Motion Picture Group: formerly Columbia TriStar Motion Picture Group. With a library of more than 4,000 films (including 12 Academy Award for Best Picture winners), as of 2004 this unit of Sony distributes about 22 films a year under its various studio brands in 67 countries. The group owns studio facilities in the United States, Hong Kong, Madrid, Mexico, the United Kingdom, Brazil and Japan. Columbia Pictures: Founded in 1924 by Harry Cohn, Sony acquired the studio in 1989 from The Coca-Cola Company for $3.4 billion. TriStar Pictures: Formed in 1982 as a joint venture between Columbia Pictures, HBO, and CBS. Became part of Columbia Pictures Entertainment in December 1987 and the Sony ownership in 1989. Was relaunched in 2004 as a marketing and acquisitions unit that specializes in the genre and independent films. TriStar Productions: A joint-venture between Thomas Rothman and SPE. Screen Gems: Originally Columbia's animation division and later a television production company best known for TV's Bewitched and The Partridge Family, as well as bringing The Three Stooges short subjects to TV in 1958. Sony revived the Screen Gems brand in 1998 to develop mid-priced movies (production budget of between $20 million and $50 million) in specific genres such as science fiction, horror, black cinema and franchise films. Sony Pictures Imageworks Sony Pictures Animation Sony Pictures Classics: Founded in 1992, Sony's specialty film label that distributes, produces and acquires films such as documentaries, independent and arthouse films in the United States and internationally. 3000 Pictures Sony Pictures Releasing: Founded in 1994 as a successor to Triumph Releasing Corporation. The unit handles distribution, marketing, and promotion for films produced by Sony Pictures Entertainment; including Columbia Pictures, TriStar Pictures, Screen Gems, Sony Pictures Classics, among others. Sony Pictures Releasing International (formerly Columbia TriStar Film Distributors International) Sony Pictures India: A production house established by Sony to release Indian movies and