How Will The Audience Know That This is The Opening?

The extract will begin with music and an establishing shot of the estate where the story takes place, it will have a long shot of a block of flats which will then tilt down onto a shot of a can which will the cut away to a shot of the same can in the main characters bathroom. At this point the music will stop. This is such a conventional start to a film and features in so many films that hopefully the audience will immediately associate these conventions with an introduction and realize this is the beginning of the film. Another way I hope the audience will know it is the start is by the fact in this extract I will mention the actions and circumstances which lead to this starting point and will have the characters explain what they plan to do at the conflict stage of the film.