This is your basic Disney theme park camera shop. Film, batteries, and photo frames—both simple ones and fancy ones with a Disney theme—are available here. You can also find disposable cameras in case you forgot your photography gear at home.
Probably the most popular service offered in this shop is the 3-hour film developing. The neat part is that your prints will be developed with a fancy border illustration featuring Disney characters and the DisneySea logo. If you're using a digital camera you can get the same fancy-border prints as well (although I don't know what kind of digital media they accept here—I would assume all the standard stuff).