I just booked our Fantasmic night for March 28. Disney has a package with The Hollywood
Brown Derby or Mama Melrose's Ristorante. Dinner and passes to get preferred seating for
Fantasmic. The latest you can book dinner reservations is 5 PM with Fantasmic starting at
7:30. You can call ahead to make your dinner reservations, 1 month before you want to see
Fantasmic and hold the ressie with your Credit card. I thought this was a better way to go than to wait until you're in Disney to book it. People start waiting in line about 1-1 1/2 hours
before the show. I hope this helps.
Love Wilderness