The film's director of photography got into a fight with Friedkin about the blu-ray release of "French Connection," saying pretty much what everyone was thinking: Friedkin ruined his own movie, and the hard work of many other people on the production.
It brings up the question - Does
the director have the right to do that? He may be the director, but filmmaking is an extremely collaborative process. On one side, though, George Lucas owns literally everything about Star Wars because Lucasfilm is his. William Friedkin doesn't own 'The French Connection' in the same way.