Busby Berkeley
Busby Berkeley (November 29, 1895 - March 14, 1976), born William Berkeley Enos, was a film director and choreographer best known for his trademark of forming large groups of dancers into intricate geometric patterns, usually filmed from overhead. He is best known for his films produced during the Great Depression.
Today any scene depicting large groups of people choreographed into intricate, highly disciplined routines and patterns is an homage to Busby Berkeley.