Netflix Offline, lets you download movies, trailers, shows etc. from Netflix on your device and watch it later say, without an internet connection or while you are travelling etc. The feature was introduced a few months ago, and has been available on other major platforms like Android and iOS.
As of now, if you have a Netflix subscription and have installed the app on your Windows 10 PC, update it and you should be able to see a download icon next to a movie trailer, or a full movie etc. Click on it and it will start downloading the movie etc. right away.
Where to find it? Go to hamburger menu and there you will see My Downloads section. Cool!
However, not all movies are available for download and if you may need to check what other are, there is a Available for Download section where you can explore all the downloadable content and choose to download it.
Netflix on PC (v6.19.100).