I you want to add a movie that is missing from our database, then you must use this forum thread to request its addition:
http://www.coollector.com/viewtopic.php?f=5&t=116and it'll be added with the next database update.
If you want to add an owned video for a movie that is already in the database, then you'll find an explanation here:
http://www.coollector.com/help.html#ownedIs it what you were asking for?