Business Object Class help

I am new to C#, ASP.NET and OOA&D. I am trying to identify the classes that I want to represent in my ASP.NET 3 tier design web app. I am having a hard time deciding what classes to create from my requirements. After looking at my requirements, can someone recommend an approach? I tried to identify classes by finding nouns in my requirements. So far I have these nouns but don't know if any should be classes: movie, format, director, studio, genre, wishlist, specification, audio, video, extra, media, rating. Thanks.

Purpose: Create a movie media website that allows me to catalog the movies that I currently own as well as provide detailed movie information for existing and upcoming movie releases.

 

Requirements:

-          The user must be able to view all the movies that they currently own. These movies can be from varying media formats (DVD, Blu-ray, etc). They should also be sortable based on movie title, genre, or movie studio. The user should be provided with the total amount of movies in the system, owned or on their wishlist.

-          A movie can have no format or one or more formats associated with it.

-          The user should be able to select, create new, update and delete movies in the system. They should be able to specify various movie attributes such as the title, production year, studio, media release date, director, summary, runtime, genre and format type (of the type they own).

-          They should be able to search for a movie based on title and have the result displayed.

-          The use must be able to specify the specifications for the movie format (usually Blu-ray) for a particular movie (reference blu-ray.com for the type of movie specs)

-          The user must be able to select a movie and be provided with a list of movie attributes.

-          The user must be able to delete movie records as well as update various data attributes

-          The user should be able to run reports based on the information stored in their collector website.

-          The user should be able to add movies to a wish list, whether they are currently released or planned to be released

-          The user should be able to rate movies using a 1-5 rating system. This rating should encompass audio, video, the movie itself, extras and overall.

-          There needs to be a facility to modify existing movie, genre, director, studio, etc content.