Theatres don't just show new movies. There's something very special about being locked in a dark room with a big screen to watch Alien or Barry Lyndon. Older movies especially look great in a theatre and some of the magic is lost on a smaller screen.

90% of any content is crap but you're missing out if you like movies and you haven't seen Sinners, The Bone Temple, or NOPE (to name a few recent great theatre watches).