What technological advancement in the late 1920s revolutionized sound in film?

The advancement that revolutionized sound in film during the late 1920s was the synchronized sound with the Vitaphone system. This system allowed for the simultaneous playback of sound and image, marking a significant transition from silent films to "talkies." The introduction of synchronized sound brought a new dimension to storytelling in cinema, enabling filmmakers to enhance the narrative experience through dialogue, music, and sound effects, thereby attracting larger audiences and transforming the film industry.

Color film technology, while important for visual storytelling, did not directly impact the sound aspect of film in the same way. Digital sound editing and Dolby Surround Sound represent later technological developments that built upon the foundation established by synchronized sound systems, but they came about much later than the initial transition to sound in the late 1920s. The Vitaphone system's innovation with synchronized sound was pivotal in shaping the future of cinema and is rightly recognized for its groundbreaking contributions to the industry.