"On some occasions the take is so obviously superior you can tell immediately. But particularly when you're dealing with dialogue scenes, you have to look them over again and select portions of different takes and make the best use of them. The greatest amount of time in editing is this process of studying the takes and making notes and struggling to decide which segments you want to use; this takes ten times more time and effort than the actual cutting, which is a very quick process. Purely visual action scenes, of course, present far less of a problem; it's generally the dialogue scenes, where you've got several long takes printed on each angle on different actors, that are the most time-consuming to cut."