Codes and conventions of a opening scene

The opening sequence of a film is meant to grab the audience’s attention and keep them watching the film, many people turn off the film if they’re not interested because of the opening titles. Therefore codes and conventions are used to ensure the audience stays interested, also they set the scene for the movie, introduce characters and let the audience know the genre of the film.

Conventions
Conventions are codes that are communicated through the film to portray a particular message.

Technical codes:
This includes things such as camera techniques, framing, and depth of field, Mise en scene, editing, lighting and sound.
Symbolic codes:
This means the objects shown, the setting, body language used, clothing and colour.
Written codes:
This code can be shown in the form of headlines, captions, speech bubbles and the language style.