The Imperial officer's uniforms were patterned after the uniforms of Nazi officers to add to their "villainous" image.

Luke's line "I can't see a thing in this helmet" was not scripted. Mark Hamill said this to Harrison Ford when he thought the cameras had stopped rolling. But, the filmmakers decided to leave the line in.

Harrison Ford wasn't an original candidate to play Han Solo. He was originally brought in simply to feed lines to the other auditioners. After watching Ford, George Lucas realized he was the perfect Han.

Luke says "Prisoner transfer from block 1138" on the Death Star - a reference to George Lucas' film THX-1138.

When George Lucas was mixing the American Graffiti soundtrack, he numbered the reels of film starting with an R and numbered the dialog starting with a D. Sound designer Walter Murch asked George for Reel 2, Dialog 2 by saying "R2D2". George liked the way that sounded so much he integrated that into Star Wars.

Mark Hamill annoyed Alec Guiness so much on set because his youth and excitement that Alec paid him a dollar to go away.

James Earl Jones' name did not originally appear in the ending credits. At the time of the film's release, Jones felt he hadn't done enough for the film to deserve a credit. His name was added for the film's re-release. Submitted by Cubs Fan

In the bar on Tattooine (where Luke and Obi-Wan meet Han Solo), you see lots of aliens at the bar. Look carefully in the background of these shots, and you'll see a NASA astronaut in full space walk gear (helmet etc) walking across the back of the shot, complete with American flag on his arm. It's quite obvious once you know where to look.

The name of the planet Tatooine came from the town of Tataouine in Tunisia where the movie was filmed. Submitted by Dr Wilson

"Vader" is Dutch for "father."

All the dialogue when Han is on the console talking to some of the commanders was all ad libbed. Harrison Ford deliberately didn't learn the lines, so that it would sound more spontaneous.

The scene in which Luke and Leia swing across a shaft in the Death Star was filmed in one take. The stunt itself was performed by Mark Hamill and Carrie Fisher. Submitted by Cubs Fan

Denis Lawson, who plays Wedge Antilles, is the uncle of Ewan McGregor, who plays Obi-Wan Kenobi in the prequels.

The film's screen tests were spoofed in a 1997 episode of "Saturday Night Live," which included Kevin Spacey playing Christopher Walken auditioning for the role of Han Solo. Walken really was considered for that role before Harrison Ford was chosen. Spacey also played Walter Matthau auditioning for Obi-Wan Kenobi and Jack Lemmon auditioning for Chewbacca.

According to the documentary "Empire of Dreams," as well as interviews on the "Revenge of the Sith" DVD, George Lucas originally wrote the "Star Wars" trilogy as one long serial titled The Tragedy of Darth Vader, which ran about 200 pages. He then broke it into three separate stories, and focused solely on the first part, which became "Star Wars." Submitted by Cubs Fan

The first time Chewie gets into the cockpit of the Millennium Falcon, he hits his head on a small set of dice. They aren't seen in subsequent shots, nor are they seen in the rest of the trilogy.

Billy Dee Williams, who later played Lando Calrissian in "The Empire Strikes Back" and "Return of the Jedi," auditioned for the role of Han Solo.

When Ben Kenobi is deactivating the tractor beam, the set Alec Guinness was on was only six feet above the floor.

George Lucas decided to release "Star Wars" in May 1977 instead of the start of the summer movie season (in the 1970s, it was a new concept as the result of the success of "Jaws" in 1975) in June because he wanted kids still in school to talk about it so as to spread word-of-mouth.

The sound of Luke's landspeeder was made with the recording of the sound of a Highway in Los Angeles mixed with a vacuum cleaner. Submitted by Dr Wilson