One of the great things about post-production with non-linear video editing software is that you can do many of the things that were missed during production. When you are filming you often miss some of the camera and set up techniques that you later wish you had. These can be things from camera focus to color adjustments, but are still relevant whether you are doing a narrative or non-fiction film. The use of camera motion is often extremely hard to coordinate during the active moments of production because so many variables occur. The slow zoom is a common technique that is used, especially for focused interviews in documentaries. This can be employed to accent the dramatics of the content of the interview subject’s monologue, yet it is often impossible to anticipate right when they are going to say something of such dramatic importance. In this case you may want to add that zoom in your video editor. Windows Movie Maker makes this process easy when you are cutting up your footage.