Just received an email from Blockbuster. Right now, you can sign up for a Kids Pass to get unlimited family movies and games for $5 month (plus tax). You can have one game or movie out at a time for as long as your Kids Pass. The DOWNSIDE
is that is only valid on 99 cent family movies and family games.
However, if you have a few kid games that you want to 1K for achievements or trophies - you could probably use it for a month. Anyway, you are allowed to cancel at any time as long as your rentals have been returned.