Mark WilliamsMark Williams Selective FilmographyAvatar(2009)Sound departmentBoom operatorAliens in the Attic(2009)Sound departmentBoom operatorThe Chronicles of Narnia: Prince Caspian(2008)Sound departmentBoom operator: second unitThe Water Horse(2007)Sound departmentBoom operatorThe Tribe(1999)Sound departmentBoom operator (Unknown episodes)(*) uncredited