This Imax theater includes state-of-the-art sound, the biggest screen in the city -- 66 feet high and 90 feet wide -- and the ability to show 3-D films.

The Samuel C. Johnson Theater has stadium seating that accommodates 477. It's part of the Discovery Center, which includes the Atrium Cafe and an enlarged gift shop.

Documentaries as well as major Hollywood releases (like the "Harry Potter" movies) are shown here.

-- Updated by Jen Chaney, Oct. 5, 2007

Modifications: Captions, wheelchair access, audio descriptions.
Reservations: Groups of 10 or more qualify for discounted rates. For more information, contact the group sales department at 866 868-7774 or group_tours@si.edu.
Advance Tickets: Tickets can be bought at the box office any time that day, ordered by phone (202-633-4629) or on the Web (www.si.edu/imax). Reservation fees apply to all phone and Internet purchases. Phone reservations are accepted every day (except Dec. 25) from 10AM to 5PM. Internet reservations are not available within 24 hours of showtime