Continuity editing is commonly used in films to seamlessly move the story and immerse viewers. Through techniques like matching actions between shots and reaction shots, editing creates meaning and guides audience response without drawing attention to itself. Various cuts, transitions, and playback speeds are employed to convey different emotions and pacing, from the tension of fast cuts to the seriousness of slow motion. Proper use of techniques like the 180-degree rule and shot matching help editing flow smoothly and tell a clear narrative.