Star Trek, Behind The Scenes

The popularity of the syndicated Star Trek led Paramount Pictures and Roddenberry to begin developing a new Star Trek: Phase II series in May 1975. Work on the series came to an end when the proposed Paramount Television Service folded.
Following the success of the science fiction movies Star Wars and Close Encounters of the Third Kind, the planned pilot episode of Phase II was adapted into the feature film, Star Trek: The Motion Picture. The film was released in North America on December 7, 1979, with mixed reviews from critics. The film earned $139 million worldwide, which fell short of studio expectations but was enough for Paramount to propose a sequel. The studio forced Roddenberry to relinquish creative control of future sequels. In total, six Star Trek feature films were produced between 1979 and 1991.
In response to Star Trek's popularity in the movie theater, the franchise returned to television with Star Trek: The Next Generation (TNG) in 1987. The show was unusual in that it was broadcast as first-run syndication rather than on a major network. Paramount and the local stations split the advertising time.