11. The original design for the Millennium Falcon became the Blockade Runner seen at the beginning of A New Hope.
12. The Jawa language: mostly sped-up Zulu language.
13. Greedo speaks Quechua, a real, South American language.
14. Bounty hunter Bossk wears a recycled spacesuit from Doctor Who.
15. What species is Yoda? It’s never been explicitly mentioned.
16. Before filming on The Empire Strikes Back began, Mark Hamill was in a serious car accident which caused major facial injuries. To explain his change of appearance, the movie contains a scene where Luke Skywalker gets mauled by a Wampa.
17. George Lucas initially wanted Yoda to be played by a masked monkey.
18. In the Cloud City evacuation sequence, an extra runs while carrying an ice cream maker. In Star Wars canon, that ice cream maker is a database of Rebellion contacts.
19. “Ewok” is never spoken in the Star Wars movies.
20. Luke’s lightsaber in Return of the Jedi was supposed to be blue (as had been the case in previous movies) until George Lucas thought it would be confusing to audiences, so he made it green. (Also he thought it would look cool.)