The Difference Between a Film Opening and a Film Trailer.

The difference between a film opening and a film trailer is, a film trailer is an discontinuous montage of clips, which only give you a small understanding of characters and actors. There can also be an tag line so people can promote the film via social networks such as twitter. Also there is often a voice over to get the audiences attention. Also a trailer tends to have lots of action and fast cuts to keep the viewers interest.
A film opening is usually continuous and gives a brief starting point of the main characters. The theme is also introduced in more detail, more names of cast and crew are also introduced. Also a film opening can sometimes be an animation which is integrated with the title and names of cast and crew.A film also gives you a small view of the plot as well as the atmosphere of the whole film.