1. Film Trailers

3. Film trailer conventions
The basic conventions of film trailers include:
Establishing the plot
Introducing the characters
Providing a general setting
Adding attention-grabbing footage

4. Teaser trailer conventions
A teaser trailer is a short series of film clips used to advertise an upcoming movie, game or television series.
The typical conventions of a teaser trailer are:
Usually between seconds long (can be longer)
Contain the minimum amount of footage from the film, so it just teases audiences
Released long before the film is released
The pace is usually fast or starts slow and picks up