D. W. Griffith has been called the father of film grammar.[2] Griffith was a key figure in establishing the set of codes that have become the universal backbone of film language. He was particularly influential in popularizing "cross-cutting"—using film editing to alternate between different events occurring at the same time—in order to build suspense. He still used many elements from the "primitive" style of movie-making that predated classical Hollywood's continuity system, such as frontal staging, exaggerated gestures, minimal camera movement, and an absence of point of view shots.