- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
One of two homeworlds of the Romulan Star Empire, orbiting the star Romulus with its twin planet of Remus, and the site where a Vulcan offshoot race eventually settled after their split over two millenia ago.
The planet is divided poltically into provinces, with the cities made up of "segments." Its scenic wonders are many, including the Firefalls of Gal'gathong.