The story was heavily inspired by an old film. George Lucas struggled with how to tell his massive space opera on a relatable scale, so he borrowed the perspective idea from director Akira Kurosawa’s 1958 film The Hidden Fortress, telling the story from the viewpoint of the two lowliest characters, the droids.
Chewbacca was inspired by a real dog. Lucas based the loyal, furry Wookiee companion on his own pet, an Alaskan Malamute named Indiana, who used to sit upright in the passenger seat of his car.
The lightsaber sound was a happy accident. Sound designer Ben Burtt created the iconic humming noise by combining the whir of an old movie projector idling with the buzz of a broken television set he walked past with a microphone.
Harrison Ford got the job by accident. Ford was originally just brought in to read lines with other actors during auditions because he was working as a carpenter for Lucas, but his natural swagger eventually won him the role of Han Solo.
The biggest twist in cinema was a tightly guarded secret. To keep the truth about Luke’s father from leaking out, the actor in the Darth Vader suit actually said the line Obi-Wan killed your father during filming. Only Mark Hamill knew the real line before James Earl Jones dubbed the dialogue in the studio.
Darth Vader barely appears in the first movie. Despite being the main, terrifying villain of the 1977 original film, Darth Vader is only actually on screen for about twelve minutes in the entire movie.
The Millennium Falcon was inspired by a hamburger. The famous spaceship supposedly got its iconic saucer shape from a half-eaten hamburger with an olive stuck next to it after the original design looked too similar to a ship from another television show.
Alec Guinness made a financial masterpiece. The veteran actor who played Obi-Wan Kenobi famously thought the science fiction dialogue was rubbish, but he smartly negotiated for a percentage of the film’s gross royalties, which made him incredibly wealthy.