Movie trailers are usually the key decider for us when it comes to what we plop down our bucks to see at cinemas. Here we take a look at the process that brings them to life.

In the video below from the fab folk at Vanity Fair, creative director Jessica Fox guides us through many of the considerations when concocting a trailer for a new film.

Obviously there’s no one-size-fits-all model, and films can be in various stages of completion when trailers are first assembled – ever wondered why a certain scene didn’t make the final cut?

For further viewing, Ms Fox looks at oft-used trailer tropes here.