Did both Pedro Sienna and Irving Cummings direct movies?
Pedro Sienna Pedro Sienna (13 May 1893—20 March 1972) was a Chilean playwright, poet, journalist, art critic and theatre and movie actor who is also remembered as one of his country's pioneering directors in the early years of silent film.
Shanghai Express (film) Shanghai Express is a 1932 American Pre-Code film directed by Josef von Sternberg and starring Marlene Dietrich, Clive Brook, Anna May Wong, and Warner Oland. It was written by Jules Furthman, based on a 1931 story by Harry Hervey. "Shanghai Express" was the fourth of seven films von Sternberg and Dietrich made together.