The 3-D film "Iron Man 3," starring Robert Downey Jr., begins at 7:50 p.m. in the Digital Adventure Theater. Visitors can meet the Iron Man character between 5:30 p.m. and 6:15 p.m., and then between 7 p.m. and 7:45 p.m.
The center's Crosby Observatory will be available from 7 p.m. to 9 p.m. Folks can see moons, planets and other astronomical events with the giant refractor telescope.
Saturday marks the last night of the center's extended summer hours. It will be open from 10 a.m. to 9 p.m. Admission, which includes all exhibits, the observatory and Iron Man activities, is $19 ($13 for ages 3-11).
For more information, go to OSC.org or call 407-514-2000.