Since Star Wars and CBS (Big Bang Theory's network) are both owned by 20th Century Fox, references to Star Wars can go much further than most other referenced material such Professor Proton's Jedi ghost effects being done by Lucasfilm and Industrial Light and Magic, and being able to use the Star Wars theme and logo style for the cold open of The Opening Night Excitation. And when she knows about Star Wars trivia, she asks herself, 'Why do I know that?'.
Penny, who is not as sci-fi fluent as her friends, often uses Star Wars as her first guess during games. Although, the gang makes references to Star Trek more often.
The guys often refer to the Star Wars franchise (such as its plots, characters and weapons). Since then there has been made a large variety of movies, books, animated TV shows, video games and other media/merchandise. after ticket price inflation adjustment it would be among the all-time highest-grossing). It is one of the most commercially successful films of all time (by number of tickets sold, i.e. Star Wars is a vast science fiction franchise which started when film maker George Lucas released the film ' Star Wars' in 1977.
The Star Wars franchise's logo, introduced in the original film A New Hope.
