Today only, Amazon has Sofia the First: Once Upon a Princess
The movie will be released on March 5 (tomorrow) so if Amazon decreases the price between now and then, you will receive the lowest rate.
In addition, if you can also get $6 off an additional movie when you purchase Sofia The First.
Expires 3/4/13.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.