Purchase a package of minutes and they will be applied to your account balance. A minute is deducted from your balance for each minute you watch of a movie.
Watch all or part of any movie. Go from movie to movie as often as you like. You can use your minutes from any computer at any location. You do not have to use all of your minutes when you purchase them. They will remain in your account indefinitely until you use them.
So come back whenever you want and your unused, remaining minutes will be in your account!