Fallout 3 had its ending neutered.
Which was a serious mistake.
Most books and films pass through focus groups and such who may suggest creative changes.
I've generally seen that called a problem, too. Movies ruined by "executive interference" & marketing/focus groups.
As I've mentioned before, I dislike the ending. But I don't like the idea of them changing it. The things I dislike about it won't be fixed by minor changes, and major changes aren't reasonable. Plus, the initial experience has already happened. No way to salvage that.

(Changing it means one of two things. Either they planned it, and are money-grubbing scum, trolling their customers. Or they didn't plan it, and are setting/supporting a bad precedent by caving to a vocal group of internet rioters. Personal opinion, of course.)