Warner also asked Google to remove links to film streaming sites run by Amazon and Sky, as well online film reference site IMDB.
The official Warner Bros web page for 2008's The Dark Knight was among the URLs that Google was asked to remove.
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. Google's transparency report says Vobile has submitted more than 13 million links for removal.
"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.