I recently saw The Social Network and very much enjoyed it. The acting fit the story, the music fit the mood and the styling fit the sequences. That was until I saw an interview with Sorkin whose screenplay was based on a book from an author with dubious non-fiction stylings;
Bringing Down the House is a book by Ben Mezrich about a group of MIT card counters commonly known as the MIT Blackjack Team. While represented as non-fiction by Mezrich and Free Press, the book contains significant fictional elements. (Wiki)
When Lost ended I felt like they cheated using story veins that never panned out or were explained. In The Social Network they go one further, creating explanations without the requisite veins.