Trivia: Boba Fett has only 5 lines in the entire film.
Trivia: Acting is a collaboration, which made the Dagobah scenes difficult for Mark Hamill. For the most part he was alone, R2-D2 was remote-controlled, and Frank Oz was beneath the sets. Furthermore, he could not hear most of Yoda's lines.
Trivia: Sir Alec Guinness agreed to appear in this movie late in filming, and performed his scenes in a single day.
Trivia: Mark Hamill broke his thumb during filming of the scene where Luke makes it out of his snowspeeder just before it is crushed by an Imperial walker in the Battle of Hoth.
Trivia: "The Imperial March" - also known as "Darth Vader's Theme" - sounds strikingly similar to the 1932 song "My Woman" by Lew Stone and his Monseigneur Band.
Trivia: Peter Mayhew was ill during one day of the filming and director Irvin Kershner shot scenes with a replacement. But without Mayhew in Chewbacca's costume, the Wookiee's body language looked wrong and the footage was subsequently scrapped.
Answer: Star Wars being for the young and the young at heart, Han and Leia's relationship unfolds in a deliberately childish manner that kids can relate to and adults will find comedic. Leia is irritated at herself for her attraction to Han, and certainly unamused that Han teases her over it, while at the same time he is not brave enough to admit his own feelings, either.
TonyPH