Homemade Stargate

Stargate is a military science fiction franchise, initially conceived by Roland Emmerich and Dean Devlin. The first film in the franchise was simply titled Stargate. It was originally released on October 28, 1994 by Metro-Goldwyn-Mayer and Carolco, and became a worldwide hit grossing nearly $200 million (USD) worldwide. Three years later, Canadian Brad Wright and Jonathan Glassner created a television series titled Stargate SG-1 as a sequel for the film.
Stargate productions center on the premise of a "Stargate", a ring-shaped alien device that creates a wormhole enabling personal transportation to complementary devices located cosmic distances away. Under the control of the United States government, the Stargate discovered on Earth is kept a secret from the public. This allows storylines to present no contradiction between depicted events and reality, an effect compounded by setting Stargate in the present day, and depicting Earth accurately, with any unrealistic technology originating solely from alien civilizations. These extraterrestrial civilizations are however more often pre-industrial than scientifically advanced, and are almost invariably human. Together, this allows for stories predominated by human interaction in Earth-like environments, an unusual feature for a science fiction franchise focused on exploration of other worlds.