The first step of a trailer is its storyboard.
Will I make a gameplay trailer? Cinematic? Do I need a voice-over? Also… Which story to tell?
All of this is decided when I do the storyboard: It lays the foundations of the narration, allows us to think about the different types of shots we will make and saves us time on the rest of the production stages.
With my sidekick Romain we make original, detailed AND animated storyboards!