To see what movies are recently coming, see the following links
You will now need to find some actual footage of that movie. Check for any few second or few minute leaks if they were released. If you cannot find any leaks, then just download the trailer of the movie from a video sharing website like Youtube
Then rename the file name of the trailer or leaked clip to something which looks similar to,
The Artist Movie Leaked ClipOr any of the following, (but with your movie name of course)
Harry Potter and the Deathly Hallows Part 2 Intro Scene Leaked
Mission Impossible 4 Ghost Protocol Leaked Sex Scene
Alvin and the Chipmunks Shipwrecked First 10 minutes Leaked
You see the concept. The word's leaked and sex scene invite the downloaders to download the torrent
Now go to your movie file or leaked intro clip and right click it. Select "Add to archive".
Go to the "Advanced" section and then hit the "Set password" button. Then click OK and you have now created the archive.
Now when you open that archive and try to watch the trailer or leaked clip it should ask for a password, right? Yeah? Excellent. Keep it up.