Pico 4 Movies

Hi everyone, got my pico 4 a few days ago and I'm pretty happy with it. This is my first vr headset so I'm still figuring things out. I wanted to ask how do people watch movies on the headset? My internet is pretty bad, so streaming, or wireless connection to a pc are not really good options. I use a wired connection to play pcvr games, which works good enough for me. I see people talking about watching movies and wondered A) where they download them from and B) is it possible to download a vr/3d movie on pc and watch it on the headset through a wired connection? Thanks!