The original name of the main character in this film was Luke Starkiller, and that was the character’s name when filming began in Tunisia. Later, when filming moved to Elstree Studios in London, George Lucas had second thoughts and changed the name to Skywalker. This did not cause a problem, as Luke’s last name had not been used in the scenes already shot.
Star Wars: Episode IV - A New Hope (1977)
When George Lucas met with Steven Spielberg to discuss a third Indiana Jones movie, he wanted to have it set in a haunted mansion. Spielberg had just finished Poltergeist and decided that he wanted to do something different.Indiana Jones and the Last Crusade (1989)
The lightsaber fight scenes set in the carbon freezing chamber tend to focus on Luke. This is because during many of the shots, Bob Anderson (Vader’s fight double) was not wearing the Darth Vader helmet, as it made it difficult for him to breathe.
Star Wars: The Empire Strikes Back (1980)