This link talks about what stages an idea has to go through to become a movie or video. The type of people that have to work on it and what kind of math. For example, they wrote that animators use math the most in the film industry and that they mostly use trigonometry, algebra, integral calculus, subdivision surfaces, and harmonic coordinates.

https://denobis.wordpress.com/2014/05/19/math-in-the-film-industry/