Understanding the TV and film industry, job roles

Alfonso Cuaron is a well known editor and won an Academy Award for the editing in the film "Gravity"
An editors job involves selecting and preparing video or audio to turn it into the final product. They cut out what isn't needed and what's not essential to the story line.
They're responsible for working with a team of other editors who have a lower editing status to make a final clean edit of a project that flows and is relevant to the storyline.
 Editors in Chief for example are the boss of other editorial staff - sound editors for example, they have to manage and motivate them. They can make between $30k and $80k annually.
There's no set hours editors work, 9-5 rarely happens they work until it gets finished and this often includes late nights and weekends.

Gordon Willis is a well known Cinematographer from working on The Godfather.

A cinematographer is the head of photography and has to keep the vision/image of the film to the brief. They work with lighting and camera to ensure this. Qualifications or more so skills needed are; have a good artistic eye, know the technical basics of photography and equipment, have some experience and be able to manage a budget/staff. They work with the director and call some of the shots with camera operators (if they don't have this role) for example so they know if there's something to pick up or focus on so it adds to the narrative, as well as camera and lighting crews. They can earn from $41k up to $65k per year. They work along side editors so again working hours aren't set and can be quite long.

Steven Spielberg is a classic example of a director, he's been labelled one of the finest directors and has worked on numerous well known films.

A director ultimately has the final say, they visualise the script and guide cast and crew to fulfil the image of whatever they're making. They're responsible for the creative aspect of film making and they help choose cast members and production teams. Successful directors need lots of work experience as well as an understanding of the industry and equipment. Knowledge in film studies would be beneficial as well as some understanding on mise en scene, lighting, sound etc. They are the boss of everyone working on the project as they have the final say and everyone has to act on what he says. Their salaries are up in the millions making from 1 to 7 depending on the person/film and the success of it. Hours vary and again you work until it's done, late nights will be a sure thing and they're present during the editing process so long hours for a few months depending on how big the project is.