"In total there are less than a handful of URLs out of millions of proven piracy URLs reported for taking down by error," Wang said in an email. "None of the four URLs on legitimate sites were ever removed because it's an obvious error."</s>Warner Brothers has taken its piracy policing to the extreme by reporting its own website.

The famously litigious movie studio put in requests for Google to remove its own website from search results, citing copyright law violation as the reason, reports copyright new site Torrent Freak.

Warner also asked Google to remove links to film streaming sites run by Amazon and Sky, as well online film reference site IMDB.

Warner regularly reports pirated content to the search engine company, but the latest round of take-down requests appears to be full of legitimate websites, including its own.

The requests were made on behalf of Warner Bros by Vobile, a company that uses video tracking technology to help companies enforce copyright on their content.

The official Warner Bros web page for 2008's The Dark Knight was among the URLs that Google was asked to remove.

Several requests were also made in relation to the 1999 sci-fi film The Matrix, again including Warner's official site for the movie.

'Warner is inadvertently trying to make it harder for the public to find links to legitimate content, which runs counter to its intentions,' said Ernesto van der Sar from Torrent Freak.

Google spotted the mistakes and decided not to remove links to Amazon, IMDB and Sky Cinema, though the Warner URLs still remain under review, reports Torrent Freak.

A Google transparency report shows that Vobile has submitted more than 13 million requests for URLs to be removed .

Along with Warner Bros., the company also works on behalf of Netflix, Paramount and MTV owner Viacom.
Warner Brothers is accused of self-censorship after it tagged its own websites for copyright infringement through the search engine Google.