A Hong Kong man on Monday was sentenced to three months in prison in what local officials say is the world’s first successful prosecution of copyright violation using the popular file-sharing software BitTorrent.

Chan Nai-ming, 38, who called himself “Big Crook” on the Internet, was earlier convicted of illegally uploading three Hollywood films, “Daredevil,” “Red Planet” and “Miss Congeniality,” onto a Web site so that others could obtain them.