Back in 1933, Warner Brothers made a pretty coin off a simple belief: In Busby We Trust. Indeed, the choreographer with the surname Berkeley turned out numinous routines for three of the studio's best backstage musicals, Gold Diggers of 1933 being the second. The plot focuses on three unemployed showgirls (including the adorable Ruby Keeler) as they pursue greenbacks to bankroll a new production; Dick Powell plays the aspiring songwriter with a moneyed but mysterious past. The song-and-dance compositions within are simply wondrous: Berkeley arranges his many extras into elaborate, kaleidoscopic patterns, often gazing at their en-masse movements from above as if they were a supernal organism under the microscope.