How do I replace my movies (bought from iTunes store) to iCloud
I would like to replace my movies to iCloud because there’s not enough space left on my iPad air 2
iPad Air, iOS 9.1, iPad Air 2
Don't know what that means.
You don't put movies on iCloud.
iCloud is a service that allows you to redownload some iTunes purchases in some countries. There is no guarantee that they will be available in the future.
You should be storing everything on your computer and you should always back up your computer.