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What work is done during film postproduction?

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Director Sir David Lean sits atop a ladder beside a film camera, surrounded by crew and equipment on the set of Doctor Zhivago (1965) under a blue sky. — film David Lean (sitting atop a ladder) during the filming of *Doctor Zhivago* (1965).

Postproduction is the phase following filming in which a motion picture is prepared for public presentation. This stage often lasts longer than the actual shooting and involves several critical technical and creative processes.12

Picture Editing

Editors work with "work prints" to preserve the original camera footage. The process begins with a rough cut to establish continuity and dialogue, eventually moving to a fine cut where the editor refines rhythm, performance quality, and the relationship between sound and image. During this time, "opticals"—such as titles and computer-generated special effects—are created and integrated.32

Sound Editing and Mixing

Because less than 25 percent of a film's sound is typically recorded during photography, most music, dialogue, and sound effects are added or adjusted during postproduction. These elements are kept on separate tracks until the final mixing (or dubbing) session, where a mixer balances them to achieve the desired dramatic effect.45

Finalization

Once editing is complete, the original camera negative is matched frame-by-frame to the edited work print. This negative is then combined with the synchronized sound track to create a composite print, known as the answer print, which undergoes color correction and timing before final release prints are produced.6