Criterion’s two-disk Tod Browning’s Sideshow Shockers showcases three of the director’s best movies, including the peak of his long collaboration with Lon Chaney in The Unknown (1927) and Browning’s masterpiece Freaks (1932) along with the lesser-known The Mystic (1925). Fine 2K transfers and some illuminating extras leave you hoping that more of Tod Browning’s work will turn up on disk in restored versions.