tl;dw?

They absolutely did look different and before that they looked even more different because they were black and white, and before that they looked like Benny Hill skit because the frame rates sucked.

And back before that they used spot lights and curtains because projectors were shit. Hell they used to even have a guy on a piano in the cinema with you.

This appears to be a more in-depth follow-up to this video from six months ago:

https://youtu.be/QjG6CqV1nmM