Dark Castle Entertainment is a film production label of OEG Inc. It was founded in 1998 originally as a film production company by producers Joel Silver & Gilbert Adler and filmmaker Robert Zemeckis, with most of its productions centered on horror films, the majority of which were distributed by Warner Bros. Pictures.

Dark Castle was founded in 1998 by Joel Silver, Robert Zemeckis, and Gilbert Adler. The Dark Castle name pays homage to William Castle, a horror filmmaker from the 1950s and 1960s. When first formed, the goal of the company was to remake Castle's horror films. After two remakes, House on Haunted Hill and Thirteen Ghosts, they moved on to producing original material, along with remakes of non-Castle films.

Gothika, starring Halle Berry and Robert Downey Jr., was Dark Castle's first original film in 2003. They followed it up with House of Wax, the company's first remake of a non-Castle film.

In 2008, the company moved beyond the horror genre to produce the action film RocknRolla.

In 2009, Dark Castle released the psychological horror film Orphan. The film grossed $80 million on a $20 million budget. Later that year, the company produced its first martial arts film, Ninja Assassin.

In 2010, they produced action film adaptions of The Losers based on the DC Vertigo comic of the same name, and Unknown starring Liam Neeson, which grossed $136 million against its $30 million budget.

After a long relationship with Warner Bros. Pictures as their main distributor, Dark Castle began working with other distributors including Paramount Pictures and Shudder/AMC.

Dark Castle, with its then-parent company Silver Pictures, were acquired by Daryl Katz of OEG Inc. in 2015. Hal Sadoff was named CEO.