Having kids view this theater's main attraction, Alamo -- The Price of Freedom, on a six-story-high screen with a stereo sound system is a surefire way of getting them psyched for the historical battle site (which, although it's just across the street, can't be reached without wending your way past lots and lots of Rivercenter shops). It's a reasonably accurate rendition of the historical events, to boot. The first commercial IMAX venue to double its viewing pleasures by introducing a second megascreen (this one with 3-D capability and a state-of-the-art sound system) at the beginning of the 21st century, this theater also shows thrilling -- and educational -- nature and scientific adventure movies produced especially for the large screen.