Warner has agreed to make some of its content legally available through BitTorrent's file-sharing system.

It's the first such distribution deal between BitTorrent and a major movie studio. It means links to hundreds of movies and TV shows will be made available through the service. All files will be rights-protected, and will begin to debut on the network this summer.

The deal adds some circumstantial weight to recent unsubstantiated claims that Apple will integrate a BitTorrent client into its next operating system, Mac OS X 10.5 'Leopard'.

MacOS Rumors claims this feature will debut in Leopard, and that users of the system will be able to set what they want to donate their bandwidth to. Examples include the distribution of iTunes content. Users who donate bandwidth will be rewarded with iTunes downloads, apparently.

The Warner/Bit Torrent deal means that legitimately available catalogue will include some major releases, such as Harry Potter and the Goblet of Fire.