I tried many sites for downloading HD movies but never find a good one. But definitely skymovies is among the worst ones from where I tried to download movies. As this site flashes too many ads. As soon as you open the site and try to click somewhere, you will be taken to a new tab which contains the ads. Don’t worry it will happen lot of time.
And about this site, truly speaking they don’t have that good quality. They will say that it’s HD but they are actually not.
And if you wish to download any movie you will have to go through a lot, they will take you to many links and will show many ads and then only you can download the movie, if the site server is alright as their server gets lost most of the times.
So I would suggest you not to download movies from this site as it can be harmful for your system, rather use YTS to download which is safe and faster and trusted.