What I had learnt for how to make opening sequences from research

From the Thriller opening sequences I have seen as well as from other genres I have seen, What I have learnt from opening sequences is that they all vary according to what type of genre they are. For example, with thriller films most of them either have a slow opening towards the actual storyline of the film such as low key lighting and crescendo to tell the audience that there are going to be unfortunate events towards the characters involved. Or is it is a comedy, depending on the target audience and sub genre, it begins with a high key lighting of the setting before introducing the characters. Some films even base the entire film around a type on convention e.g. Jaws uses crescendo to represent that the it is approaching towards its next victim.

As soon as the film begins, it would usually show one of the famous iconography pictures that people would know what type of genre it is just by looking at that particular iconography. E.g. The film The Shining shows a family driving towards an old house where they will be moving into. This slowly build up towards the first climax or the main plot to the story of the film where the audience begins to get an insight of what the films in going to be about throughout. This is just before the end of the opening sequence. When it comes to Thriller films, this is usually the part where the build up towards the climax begins. E.g. The film Lucy show her being dragged away by a group of men before ending the opening sequence. Opening sequences usually leave for the audience to wonder about keeping them engaged throughout the film seeing if their questions will be answered. All of these conventions and uses of opening sequences would help with my film since I could create ideas based of the conventions I have learnt from research that could be used for my own opening sequence of a Thriller film.