Today, it's Netflix that has to do some catching up to Blockbuster. As you may already know, 3D is not limited to movies alone. There is good news, there are now places that will allow you to download dvd movies online.
You also have the option of watching movies instantly so you don't have to wait a day or 2 for DVDs to arrive by post. So I mentioned free movie download sites and movie download sites that charge money, but not the 3rd way.