system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5. How do they restore old movies to HD.

how are they "restored" and put on DVD in 720 and 1080?? Wouldn't they have had to be filmed that way in the beginning?
Thanks (watching an old movie - *Leon, The Professional* and wondering.)
gpt
35mm is actually very high resolution. It was made to be projected on those huge movie screens and look good, so it should look good on your TV. The information is there on the original masters and/or prints, so studios usually go back and compare a couple of prints, scan in the best parts, do some digital magic, and then it can be exported at 720p or 1080p.