InternetWeek | News | Piracy Cost Movie Industry $6.1 Billion: "The study, conducted by LEK Consulting, estimates losses from Internet piracy at $2.3 billion, about $2.4 billion to bootlegging, and $1.4 to illegal copying. The MPAA commissioned the study 18 months ago to quantify the scope of the movie theft in the digital age and to provide ammunition to nudge governments in the United States and internationally to take action."
It's not that I don't think piracy happens, and it's not that I don't think that the practice costs the industry a lot of money. But do these numbers assume that every pirated copy of a movie represents a lost sale? If so, I suspect that these numbers are way off. I think very few people who snag a bootleg copy of a movie do so in lieu of buying a legal one.