Both of the above are examples of radio trailers for films,
although both are quite old ,they still show us what differing convection's are required for a
trailer. Indicating areas to be considered for our own productions.
Both of the trailers share a number of similarities
in production.
They both include a voice over, that introduce a potential
audience to the key details that must be known about the film. For example, the
film name, actors starring in the film, date of release, and an overall idea of
what the film is about including the possible genre.
Most of the radio trailers also contain a key quote from
the film, as well as a number of carefully selected sound bites such as can be heard
in the radio trailer above for Star Wars.
On their own these sound bites don’t make much sens, and
thus do not give away too much about the film however they must give enough information to stimulate the potential audience, to generate interest in the content of the film. All of these points are present in the two trailers above.