Hi Francesca,
I'm a little fuzzy on the question. Will you be at Walt Disney World or are you looking for Disney merchandise? If you are looking to combine his birthday with a trip to WDW, the
Art of Animation Resort (opening phases beginning May 2012) and
All-Star Movies Resort both have themed areas over the movies your son likes. You son can enjoy attractions & meeting characters that are focused on those films:
Festival of the Lion King at the Animal Kingdom,
Toy Story Mania at Disney's Hollywood Studios, &
Buzz Lightyear's Space Ranger Spin at the Magic Kingdom. You can surprise your son with a speciality birthday cake for him by calling the cake hotline at 407-827-2253 or order a themed room surprise for him at
Disney Floral & Gifts. Don't forget his free birthday button from Guest Relations, too!
If it is merchandise you are looking for, you can contact WDW merchandising at 877-560-6477 or wdw.mail.order@disneyworld.com. You can certainly try the
Disney Store as well.
Please let us know if you are hoping for different information!