In the late 1970s, Paramount wanted to bring Star Trek back in some way. They commissioned Star Trek: Planet of the Titans, the lost movie in the franchise. The film was to be a time-travel adventure, potentially turning the crew of the USS Enterprise into the Greek pantheon. There was one story that outspoken atheist Gene Roddenberry consistently tried to put into Star Trek.
Source：https://www.cbr.com/star-trek-planet-of-the-titans-lost-movie/
