According to Walter Murch, when it comes to film editing, there are six main criteria for evaluating a cut or deciding where to cut. They are (in order of importance, most important first):
• emotion — Does the cut reflect what the editor believes the audience should be feeling at that moment?
• story — Does the cut advance the story?
• rhythm — Does the cut occur "at a moment that is rhythmically interesting and 'right'" (Murch, 18)?
• eye-trace — Does the cut pay respect to "the location and movement of the audience's focus of interest within the frame" (Murch, 18)?
• two-dimensional place of the screen — Does the cut respect the 180 degree rule?
• three-dimensional space of action — Is the cut true to the physical/spatial relationships within the diegesis?
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