Offer Description:
If you are a DirecTV subscriber you can get one of five Disney DVDs free for either registering online or updating your online profile if you are already registered.
How to get the free Disney DVD:
Visit the Disney page on the DirecTV site, select your desired Disney DVD, enter your account number and profile information.
Offer Availability:
The free Disney DVD offer is only available to DirecTV subsribers and is only available in the US.
What are risks in registering?:
I would assume there is very little risk since you need to already be doing business with DirecTV to qualify. You can use a junk email account if you wish, but be aware that DirecTV may use the email address to send you important information, so the address should be a permanent one that you can actually find email in.