Answer
To Post a Movie:
Click on
Movies in the top nav, then click on the
Post Movie button. Enter the Title, Category, Year, and Description of the Movie, and click the "Submit Movie" button.
To Add a Movie to your profile that is already on the site:
Click on
Movies in the top nav, then find the desired Movie and click on it, then click the "Add this Movie to your profile" button on the bottom of the right sidebar.