** novichok2006 ** , files with the .torrent extension are not the movies themselves, they are metadata files that contain the tracker url, general information about the uploaded file (name, length), checksums of the segments of the uploaded file.
These files can be distributed via any communication channels - for example, these files (or links to them) can be uploaded to web servers, posted on the home pages of network users, sent via e-mail, published in blogs or news feeds RSS.
The client starts the download by receiving in some way a file with metadata, in which there is a link to the tracker.
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http://ru.wikipedia.org/wiki/Torrent