Movie studios are starting to eliminate the practice of showing films exclusively in cinemas for a period of time. The danger is that, in the future, streaming dis-services may be the only authorized way to watch movies.

Why does this matter? Because movie theaters are the only authorized way to watch a film that doesn't oppress those who watch.

DVDs have DRM that we know how to break, but DVDs are no longer easily available. Bluray disks have DRM that we cannot break and therefore should never be used.

Netflix has DRM, and creates a dossier about each customer, as well as imposing an antisocial contract where you promise to be a jerk (by not sharing copies).

The only way nowadays that you can see a film, that doesn't oppress you, is to get an unauthorized copy.