The Academy Theatre, Portland, OR. Opened in 1948.
Easy to miss if you're driving down Hawthorn in Portland, Oregon, the CineMagic is the latest incarnation of this theater, which opened as the Palm in 1914, then became the Star Hawthorne in 1934, then the Zephyr in 1937, the Plaza in 1938, the Fine Arts in 1957, the Columbia in 1987, and then CineMagic 1991.
The Sutter Cinema 3, Yuba City, CA. Opened in 1950, closed in 2006. There are currently plans to restore this theater and use it as a performing arts center.