About Firma Helle Willemstein is an Amsterdam-based audio post-production studio. Sound design is like life. It’s all about getting the right balance – from the ‘big picture’ to the tiniest details. We balance feature film with commercial work… Blockbuster with art-house… Minimal with massive… Tech with passion… Silence with noise. Re-recording mixer Arno Willemstein and sound designer/editor Martijn Helle united in 2014 to build the ideal environment to explore and achieve...