Log onto Netflix.com, and click on the "Not a Member" field. Netflix memberships range from $4.99 per month to $23.99 per month. Chose a subscription and payment option to gain access to the 100,000 titles that Netflix holds. Click the "Watch Instantly" tab in the top menu. You will be presented with titles that you can watch on your computer. Click on the "Play" icon under each title.
Download the latest version of iTunes from Apple.com. Install the software, and open the application. Click on the "iTunes Store" tab to enter the online movie selection. The main menu will have titles listed of popular and newly released films. There is also a search field if you are looking for specific titles. Click the "Buy" tab under the title of the movie you want to watch. If you have not purchased media from iTunes before, you will be prompted to enter payment information. Once you add the necessary information, your movie will start to download and will be viewable on iTunes.
Amazon Video on Demand uses streaming video.Create an account on Amazon if you have not already. Go to Amazon.com, and hover your mouse over the "Music, Movies, and Games" tab. Click the "Video on Demand" link. A large selection of titles will appear. You can also find specific titles by using the search field. Click on the title to rent the movie. Renting 99 titles costs $2.99.
Go to Hulu.com, and create a membership by clicking the "Sign Up" link. Fill out the required fields. If you want to view your downloadable movie in HD and be able to transfer them to your iPhone, chose to subscribe to Hulu Plus. Hulu has a large selection of movies and TV show to watch. Free members are limited to watching movies on their computer only.