Depends on your family’s eating habits.

Arrive at Sci-Fi by 11:15, or so.

As long as you are finished and out of Sci-Fi by 12:30-12:40, you should be able to find
seats somewhere at the Indy show.

Indy is not at all far from Sci-Fi.
(See the lower 3rd of my map, below.)

Disney Star Wars Resort

Tampa Web Design

Disney World Resorts Info