Consistently? They don't. It's quite rare for movies to be spread in dvd/buyray quality before they are released. What you usually get before the dvd release is "cam" (filmed in a theater), but most of the time they are so bad quality it's not worth watching. And later you get "R5" (dvd region 5), which is sold earlier but with lower quality, in an attempt to reduce piracy in that region.
But to get a proper HD movie, you usually have to wait until the dvd/bluray is released.
The TV presumably. They record it when it first airs and uploads the torrents as fast as they can.
What about DVD films before they're released?
Someone gets a hold of a preview DVD or something like that. Essentially a leak somewhere in the movie industry.
But how do these big torrenters get these early releases / leaks so consistently.
Consistently? They don't. It's quite rare for movies to be spread in dvd/buyray quality before they are released. What you usually get before the dvd release is "cam" (filmed in a theater), but most of the time they are so bad quality it's not worth watching. And later you get "R5" (dvd region 5), which is sold earlier but with lower quality, in an attempt to reduce piracy in that region.
But to get a proper HD movie, you usually have to wait until the dvd/bluray is released.