Bono, frontman of rock band U2, has warned the film industry not to make the same mistakes with file-sharing that have dogged the music industry.
Writing for the New York Times, Bono claimed internet service providers were "reverse Robin Hoods" benefiting from the music industry's lost profits.
He hinted that China's efforts prove that tracking net content is possible.
More:Bono New York Times
SUBSCRIBE AND FOLLOW
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements.Learn more