With Kdenlive you can emulate the classic cinematic look of Hollywood films in post production: all you need is a slightly overexposed shot and the effects for the light manipulation of the famous open source video editor
Do you have to shoot a scene outside at night and do you only have a small lamp to illuminate everything? All you have to do is shoot multiple clips illuminating different points of the scene, and use Kdenlive to blend everything into one very bright movie.