Caryn James barely scratches the surface with her article-cum-warning about directors' dream projects: "Here is a basic rule of moviegoing," she starts, "when you hear about someone's dream project, run from the box office fast."
On the list of dreamers and their flops: Oliver Stone (Alexander), Kevin Spacey (Beyond The Sea), Scorsese (Gangs of New York, AND Last Temptation of Christ), John Travolta (Battlefield Earth)... seriously, there's a year's worth of articles to write on this. I'll leave the comments open for a while, so feel free to add your own favorites.