The Capitol Cinema was the largest movie theatre ever built in Ottawa, Ontario, Canada, and was the city's only true movie palace. Opened in 1920, the 2530-seat cinema was regarded as one of the best cinemas designed by famed theatre-architect Thomas W. Lamb.

A movie palace is a large, elaborately decorated movie theater built from the 1910s to the 1940s. The late 1920s saw the peak of the movie palace, with hundreds opening every year between 1925 and 1930. With the advent of television, movie attendance dropped, while the rising popularity of large multiplex chains in the 1980s and 1990s signaled the obsolescence of single-screen theaters. Many movie palaces were razed or converted into multiple-screen venues or performing arts centers, though some have undergone restoration and reopened to the public as historic buildings.