Understanding the purpose of an opening sequence

The purpose of an opening sequence is to let the audience know what is going on within the film and help to set the scene for where it will be set throughout. It also introduces all of the actors that are going to be included in the film throughout, which could be ne of the reasona that many peopole may have paid to go and see that film (because if there are big name actors that they will recognise in it). They also gradually interest the audience in the film because they often begn with something that would shock the audience, and from that point in keep them interested and want to find out what has happened. The choice of font used in a title sequence can help set the genre of the film because, for example, in se7en, in has quite rough words which appear to be handwritten, or look as if they have been, indicating that the film is going to be a thriller becuase the font chosen looks quite mysterious and a bit scary. Most successful opening sequencs give something away in the film that will keep an audinece member guessing throuhghout what has happened and make sure that they are keeping them interested in the film and want to know what has happened.