George Lucas was born on May 14, 1944, and "THX 1138" was released in 1971. Lucas directed the film while he was in his late twenties. Specifically, he was around 27 years old when the film was completed and released. The film, which is a science fiction dystopia, was his feature directorial debut and was based on his earlier student film, "Electronic Labyrinth: THX 1138 4EB."

"THX 1138" is rated R primarily for its depiction of drug use, nudity, and violence. The film portrays a dystopian future where citizens are controlled through mandatory medication to suppress emotions and desires. The protagonist, THX 1138, experiences moments of rebellion that include scenes of drug-related activities and sexual content, along with instances of physical conflict. These elements contribute to the film's mature themes and overall tone, warranting the R rating.

In "Star Wars," the number 1138 is a reference to George Lucas's earlier film "THX 1138." The number itself has become an Easter egg in various Lucasfilm projects, symbolizing a connection to his work. In "Star Wars," it often appears as a code or designation, such as in "Episode IV: A New Hope," where a stormtrooper is referred to as "TK-421, why aren't you at your post?" The use of 1138 serves as a nod to fans familiar with Lucas's filmography and his exploration of dystopian themes.

"THX 1138," directed by George Lucas, is not directly based on George Orwell's "1984," but it shares similar themes of a dystopian future where individuality and freedom are suppressed by a totalitarian regime. Both works explore the loss of personal identity and autonomy in a technologically controlled society. "THX 1138," released in 1971, draws on various influences, including societal fears of dehumanization and government control, which resonate with Orwell's critiques of totalitarianism.