We don't even need a tight budget or a fussy producer to get into such dire straits.  Lots of times we imagine a certain scene that involves certain characters and happens in a certain setting.  When it's time to put that scene in the script, we find that in the narrative flow of our previous scenes, we have killed half of those characters, sent the other half on a trip of uncertain return, utterly destroyed the location, or worse, we find that the scene has to go in that particular place or all coherence is lost in our story.  This sort of predicament frequently appears when writing with Dramatica—the predicament where several stages of the process (Storyforming, Storyenconding and Storyweaving) lead us to envision a scene without considering how it fits within the whole story.  Then, when we finally write it, we realize that the characters and location are not available.  We think we have made a very serious mistake and consider rewriting everything just to make this darn scene fit in.

There's no need to it.

There are ways to break free from the Setting/Character Tyranny and expose these Dramatica scenes—or any scene for that matter—with a completely different set of Characters, in a new Setting altogether and still leave the content, meaning, events and story flow untouched.