American movies have always been the fastest moving in the world and digital technology—both recording and editing—has enabled them to move even faster.

Special effects and action.

Explanation:

American movies have frequently been described as action-packed and very fast-developing. This comparison is usually made with Latin American, European, and East Asian movies that tend to place more emphasis on character development than the average American movie.

Recording and editing has also played an important role by speeding up the development of the films and allowing them to reach a climax defined by an adrenaline rush.