Andriew Davis. He made The Fugitive, a great action thriller. He never made anything more than just decent after that.Roger Spottiswoode made a really good and underrated film called Under Fire with Gene Hackman and Nick Nolte. After that he had some decent and passable films but most of the time his movies sucked.Vincenzo Natali went from Cube to pretty much crap.Antoine Fuqua. Training Day was good. Then nothing.I also think that Peter Berg has made only one good movie and that's his first. Very Bad Things.John Singleton of course.James Foley some how made one of my favourite films, Glengary Glen Ross.I only liked Dawn of the Dead from Zack Snyder.And the most disappointing one hit wonder director for me is a French director Mathieu Kassovitz who made Hate (1995), one of the best films from the 90's in my opinion. Then he completely lost it. I mean he did Babylon AD with Vin Diesel.