Something doesnt work.
You have to activate Javascript and disable AdBlocker to use the website howeveryone else is used to.

What is the difference between the stream mirrors?
HD Stream - Offers high quality videos from a professional third party provider after a free signup. If you have payment, sign-up questions or something related to their service contact them. We can no help you in these cases so use your email history to find up where you signed up.

I can't find a Movie.
Check it again after a while. The Database is updates nearly every day even if only famous and known movies are added.

The websites seems to work strange on my mobile device.
Iphone and smartphones should work fine but it doesn't look pretty how it should. The website is optimized for desktop and tablets so you should try to use them.