The use of the scrolling story in space sets up many audience expectations, that the action will be set in space, and that it will base around a struggle between the rebels and the Empire. Narration is a fairly formal method of exposition, linked to the old style fairytale format, preparing the audience for a classic narrative and easily recognizable characters, and expectation that is fulfilled throughout the film (Leia is the princess needing rescue, Vader the "baddie" and Han Solo is the knight and shining armour for example). However, the traditional fairytale narrative also dictates that there should be a happy ending with all the loose ends tied up. This is not the case, for whilst the film ends on an up beat note, the ultimate threat of the Empire has not been neutralized, and has to be dealt with in a separate film.
The opening section begins with what appears to us to be a large space ship, flying in from the bottom of the screen at great speed, instantly creating the enigma of who it is moving away from and why they are being fired upon. The next thing we experience is a truly huge battle cruiser gently fly in from the same direction, dwarfing the one seen before. This sets the audience up to expect grand scale- big ships and big battles.
The ship rebel ship is relatively battered and older looking. This shows the rebels as the underdog, endearing them to the audience, and insinuates that this has been a long drawn out battle, preparing the audience for the