Last spring I was a guest in David Fenster's editing class at UCSD and as an assignment the students had to cut a short from some of the unused Bush League footage. I gave them two hours of footage from Henry Nyimbiri’s wedding, which they had to cut to five minutes or less (Henry is the captain of the rival team in Bush League). One of the students, Bryce Kho, did something that illustrates just how much influence the filmmaker/editor can have on the "reality" of a documentary. It’s a great illustration of the function and/or disfunciton of ethics in doc filmmaking and it’s funny.
http://vimeo.com/11632347