Trailers use montage editing to highlight key parts of a film and advertise it to the target audience, arousing their interest. Trailers are shown widely on televisions, in cinemas, and on DVDs, ensuring broad exposure and frequent viewing opportunities to effectively promote the film and aim for popularity and success upon theatrical release.

2.  A trailer mainly uses montage editing highlighting
the key and important parts of the film. It is used to
advertise the movie to its target audience and to
get them interested.
 Trailers are shown everywhere: on televisions, in
cinema’s, on DVD’s etc. This is so they are in a wide
market and are shown to the audience at every
opportunity to really advertise the film; so when it
comes out in cinemas, it is popular and succeeds.
Look underneath for an example.

3.  The clue is in the name. The title sequence is the first part
of a film or programme that shows the name of it as
mentioned below.
 A Title Sequence can be seen in films or television
programs. It is used to present the title of the film or
programme, the actors and the other people whom were
involved e.g. Editors.
 When watching a title sequence you can start to make
sense of what is going on, which shows that continuity
editing is used and not montage as it could confuse the
audience.
 A title sequence also hooks the audience and starts to
make them ask questions e.g. Who are they? Where are
they? When? Why? How?
Look underneath for an example.