At the initial stage of operation, Castle Rock Entertainment mainly cooperated with Columbia Pictures and Nelson Entertainment. Most of the founders of Castle Rock Entertainment have worked for the embassy film industry. For example, Robert Lai Na directed The Princess Bride for the Embassy Film Company, which was later acquired by Nelson Entertainment. New Line Pictures later acquired Nelson Entertainment and became the main cooperative company in the later period of Castle Rock Entertainment.
1994, Turner Broadcasting Company operated by ted turner acquired Castle Rock Entertainment Company. 1996, time warner Inc. Company Group acquired Turner Broadcasting Company, and Castle Rock Entertainment Company became a subsidiary of time warner Inc. Company Group. Hannah Babela, a subsidiary of Turner Group, was merged by Warner Bros. Pictures; Castle Rock Entertainment became a subsidiary of Warner Pictures; The new line film industry maintains independent operation.
In 2004, Castle Rock Entertainment Company filmed the computer animation Polar Express, which is one of the few blockbusters of the company. In 2007, New Line Pictures and Castle Rock Entertainment Co., Ltd. co-produced "Flaw", which was their first cooperation after being acquired by Turner Group.