My List remembers a choice
A saved film is a bookmark inside 123Chill. The website does not download the film to your device. You still need a connection when you open its viewing options.
Download through the viewing service
If a service supports offline videos, use its own download option for the title. Confirm the year, audio and subtitles, and check the download has finished before travelling.
Test before you leave
Play a short part offline on the actual device you will take. Check any expiry or viewing window shown by the service. This website does not offer movie files or an APK installer.