You can download the whole movie (usually the movies are uploaded in parts) by using IDM (Internet download manager) if you have the premium access to the sites which the films are kept (uploaded)
or else...try mediafire links...you can resume them afterwards also (if the links are not dead)
there are mediafire movie blogs..such as this one...
http://www.300mbfilms.com/
or...the easiest (but may be time consuming) way is using torrents...

try this one as the torrent saerch engine...
http://torrentz.eu/
if you know the movie title you can find a good torrent there...