You can add movies to your Netflix instant Queue in two ways.
1) Right from the Roku player. Roku improved the Netflix experience with a new interface that lets you search and watch movies and TV shows instantly or add them to your instant Queue for later viewing.
2) From the Netflix website. At the top of the Netflix home page, you’ll notice a tab at the top called Watch Instantly. Or you can look for any movie or show that has a red and blue Add/Play button. When you find a title you want, mouse over the button to see and click Add to instant Queue. After you add a movie or show to your instant Queue online, it will appear on your TV . Still have questions about the Netflix Service? Go to http://www.netflix.com/ or call Netflix at 1-888-658-3612.