Pitch

1. The author's persuading talk, aiming to sell the idea of the film to the producer and to get a production decision for the project.
   
   
2. The producer's persuading talk, aiming to get financing for the film project.
   
   
3. Pitching: selling the film.

Making a Pitch [hbr.org/2020/05/what-makes-a-great-pitch MakingPitch.html]

Backstage: How to Pitch a Movie [How to Pitch a Movie Idea: A Guide for Screenwriters | Backstage]

Sell your idea to Hollywood. [www.moviepitcher.com]