WALLEN MARSH THE ART OF WALLEN MARSH Studio Wallen Marsh produce their own music, compositions, and sounds for all different types of entertainment. Learn More Cinema Coming to a cinema near you. Be a part of all the different departments that make up film making Learn More Our Collection Designing clothing sets for everyone. Learn More DAVID. Casting for our feature film is now OPEN. Wallen Marsh gives the very unique opportunity for all artists to download audition material and send in an audition reel online. Audition Here