Before Luke succumbs to hypothermia, the Force spirit of his deceased mentor, Obi-Wan Kenobi, instructs him to go to the swamp planet Dagobah to train under Jedi Master Yoda.

Han braves the perils of the asteroid field despite C-3PO's projection that the possibility of successfully navigating the field is approximately three thousand seven hundred and twenty to one.

Vader severs Luke's right hand, which is later replaced with a robotic prosthesis.

When Luke asks what's inside the cave, Yoda responds, "Only what you take with you." Luke goes into the tree-cave carrying his lightsaber, which symbolically represents his fear. So he is confronted by Vader, who also embodies his fear.

Tibanna is a gas used in hyperdrives and starship weaponry, and as a coolant around the gravito-active elements of repulsorlifts.

Darth Vader chokes Admrial Ozzel for coming out of hyperspace too early and Captain Needa because he loses the Falcon.

Yoda's iconic manner of speech has the parts of speech in object-subject-verb order. Very few languages on Earth use this, and most are based in the Amazon river basin.

Bacta is a fluid used to accelerate healing and treat major injuries.

Han and Leia escape with C-3PO and Chewbacca on the Millennium Falcon while Luke and R2-D2 travel to Dagobah in Luke's X-wing fighter.

Cloud City prospered under the capable stewardship of Baron-Administrator Lando Calrissian until it came under Imperial scrutiny.