Justice is very versatile movie dog.  Although well bred, he does not look to many people like a distinct breed.   This allows him to play a wide range of roles. 

He also has LOTS of drive, and is very easy to motivate on the set.  He has a wide range of behaviors, from attack work to cute tricks.  He is naturally very intense, but can also play mellow.  He is a very elegant mover and can be very striking as the center of a scene, but can also easily be the generic brown dog in the background.