One of the earliest trailers that was released was the 1937 Walt Disney film Snow White. Throughout this trailer there is a heavy use of large text put on screen which conforms to the stereotypical 'bigging up' of the film "nothing ever like it'. Also, throughout the entirety of the trailer, there is no use of any clips or segments of the film, but instead pictures and clips of Walt Disney himself describing the film and why he is so happy with it. This style would never be used in the modern day film industry as companies now thrive of hinting story lines and showing clips of the film.
http://www.youtube.com/watch?v=5kWr9e4JN5I
Just over 20 years later, Alfred Hitchcock's Psycho was a wholly original and experimental method of how a trailer could be different to the conventional ones of that time. In this trailer, the audience is shown around the Bates Motel by Hitchcock himself to give us a feel for how it looks. Unusually, this trailer is 6 and a half minutes long, with the end of it being the famous shower scene where the curtain is pulled back and the woman screams. This clip would give the audience something to be intrigued by.
http://www.youtube.com/watch?v=grOrDB4_8Pk
Another key trailer comes from 1977 which Star Wars: A New Hope. This trailer was instrumental in being one of the first trailers of its time that featured its special effects that were considered way ahead of its time in a major role as the vast majority of clips of the film were highlighting its technological capabilities. However by now its use of a voice over was now seen as common and it also still used large text to advertise the film further.
The main development in trailers since has been the use of music that is now seen as a necessity in film trailers as well as further use of CGI. Also in modern trailers there use of music that is fitting to the trailer and music that helps to create an atmosphere within the trailer, as well as small snippets of scenes to leave us wanting more, often the best scenes are shown in the trailer to make the audience want more.
http://www.youtube.com/watch?v=grOrDB4_8Pk
Another key trailer comes from 1977 which Star Wars: A New Hope. This trailer was instrumental in being one of the first trailers of its time that featured its special effects that were considered way ahead of its time in a major role as the vast majority of clips of the film were highlighting its technological capabilities. However by now its use of a voice over was now seen as common and it also still used large text to advertise the film further.
The main development in trailers since has been the use of music that is now seen as a necessity in film trailers as well as further use of CGI. Also in modern trailers there use of music that is fitting to the trailer and music that helps to create an atmosphere within the trailer, as well as small snippets of scenes to leave us wanting more, often the best scenes are shown in the trailer to make the audience want more.