In the top nav bar, click on the Movies link.
Click on the ( Menu) icon on the top right corner of the page. The menu will expand.
Then click on the dropdown that says " Forums / Blogs / Polls / Poems / Videos / etc.". It will expand.
Then click on Movies in the list of links.
You will see a list of Movies.
Click on a Movie to view it.
Press the "Post Comment" button.
Then type in your comment and press the "Submit Comment" button.
Your comment will appear immediately under the Movie.