Film trailer comparison

I am going to compare two starwars trailer, Empire strikes back - 1980 and Revenge of the sith - 2005. I will compare the codes and conventions of the two trailers and how they have changed over a period of years.

Starwars - empire strikes back
The trailer begings with the recognised starwars opening them with the blue colour starwars logo panning slowly closer to the screen with a galaxy/universe background. The trailer then flicks through two second shots from the film in a random order. The Trailer consistently refers back to the oncoming starwars logo each time it is closer to the screen. There is consistant digetic sound in time with the actions in the scene. The music is orchestral, traditional david williams music. The shots consist of medium to close up to extreme long shots showing all the key characters and identifyable props such as lightsabres. The mise en scene is the most noticeable in the trailer as it identify the genre clarly being sci-fi.

Starwars - Revenge of the sith
The trailer begins with Advertisements such as luasfilm and 20th century which is a change in years passing as it shows a more modernised media instituion. The music is orchestral however more slow and quiet at the beginning, the main sound is the non digetic sound from the characters however only certain scenes show the lipsink to be in time. The mise en scene is also clearly shown through the trailer as there is clar view of lightsablres and spaceships. The storyline is more identifyable as it is narated through the sound and relevent images. The trailer then flicks through two second shots from the movie. alot more is revealed in thia trailer than the first and the scenes contain alot more action and cgi showing their is an improvmenet in film investment and the companys can afford to include these formats and also the twenty five year gap shows how cinema entertainment has dramatically improved.