Question

Who leads the creative team? producer director screenwriter cinematographer

Answer 1

director leads the creative team
hope it helps you

Answer 2

The producer is essentially in charge of making the film happen, they may even be responsible for hiring the Director and Writer to execute a concept (which could be their own, or anyone else's). Once the production is underway the producer will be in charge of co-ordinating the shoot and be responsible for acquiring anything the production needs for the film to happen (cameras, locations, props etc).

They don't necessarily decide what those things are - for example the DOP will say what camera the production might need, the Director will say "can we get this location?". It's the Producer's job to try and get hold of these things and negotiate on price etc, also to keep and eye on the budget to make sure that departments aren't overspending.

The writer is responsible for writing the script. Once they've handed over the script that's pretty much the end of their creative involvement with the project.

If the producer has hired the writer to write the film the producer can ask for rewrites, or even opt to bring in other writers if they don't feel the script is working. This happens quite a lot in Hollywood.

Director

The Director is responsible for making the script a reality, they're basically in charge of the creative decisions on the project. During pre production the Director will cast actors and may make changes to the script to suit their own personal vision. They will storyboard the shots and choose locations, colour schemes, costumes and many other elements.

During production they are in charge of the set and work with the actors and other crew to execute their creative vision for the film.

In post production the creative considerations continue for the Director. They will work with the Editor, VFX team, Sound Designer and Composer until the film is finished, having input on most aspects of post production.

Actors

Actors generally have a more defined role, they must do what the Director asks of them and are there along with everyone else to help achieve the Director's vision for the film.