What is an editor?

Drawing from what you've learned and experienced so far, what is the editors role in a movie? Out of all of these responsibilities, what are three that you could give examples of?

Editors create a natural flow in between shots by cutting, arranging, and correcting. 

Cutting: Editors must have the ability to cut parts of the shots which are uninteresting or otherwise unnecessary. This is an important skill to have, because the editors cannot choose the shots which are simply beautiful. A scene may be the most beautiful shot ever taken, yet editors must cut out the shot if it is unhelpful for the story.

Arranging: The editors must know how to arrange the scenes correctly to enhance the flow of the edit. This means the editors must choose which scenes are necessary at what moment in order to tell the story in the most effective manner. Some stories will not make sense if it is ordered incorrectly. The better the continuity of the edit, the harder it is the recognize the editor's job.

Correcting: Fixing the mistakes made in the raw footage is another job the editors must be able to do. No matter how cautious one is on set, some mistakes cannot be found unless the scene is carefully viewed by the editor. It is the editor's job to correct these mistakes by cutting them out or using special effects.