This is a file hosting site. When you first go there, in the upper righthand corner is a flag (2nd icon from the right). You can click on that to change the language to whichever you want.
Now that it's in your language, underneath the movie itself are two big boxes for downloading. The one of the left wants money to download, the one on the right is free, but slower. You should then get a normal download box depending on your computer/browser.
Note, you do NOT need to register on the site to download.