It's not that simple. Comparing a 20 minute episode to an entire movie is ridiculous, and it was released in theaters so the most you'll ever get for now would be a bootleg recording.
Episodes air on T.V each week in Japan; people record the raws and people translate it and add subs. It is an entirely different situation to try and sneak in a camera to record the movie which will end up having abysmal quality and quite frankly; not worth the risk and effort. It's roughly 9 months after the screenings in theatres that the home video release comes out which people can rip and starts floating around online with watchable, decent quality and it takes normally anywhere from a few days to weeks to get subs. Deal with it.