Code of the Secret Service is a 1939 film directed by Noel M. Smith and starring Ronald Reagan. It is the second of four films in the U.S. Secret Service Agent Brass Bancroft series, having been preceded by Secret Service of the Air (1939) and followed by Smashing the Money Ring (1939) and Murder in the Air (1940).The series was part of a late 1930s effort by Warner Bros. to produce films depicting law enforcement in a positive light under pressure from Homer Stille Cummings (Franklin D.