Editing techniques and montage are fundamental to filmmaking, shaping how stories are told and emotions are evoked on screen. From early pioneers like Porter and Griffith to Soviet montage theorists and modern digital editors, the art of cutting and arranging shots has evolved dramatically over cinema's history. Key concepts like continuity editing, parallel cutting, and various types of montage allow filmmakers to manipulate time, space, and viewer perception. Understanding these techniques reveals how editors craft meaning, guide attention, and create psychological impact through the juxtaposition of images and sounds.