Irving Camisky (October 9, 1888 – April 18, 1959) was an American movie actor, director, producer and writer.
The Brute is a lost 1927 silent film western directed by Irving Cummings and starring Monte Blue.
 It was produced and distributed by Warner Brothers.
The Impatient Years is a 1944 romance film made by Columbia Pictures, directed by Irving Cummings, and written by Virginia Van Upp.
A Holy Terror is a 1931 American Pre-Code Western movie starring George O'Brien, Sally Eilers, Rita La Roy, and Humphrey Bogart.
 The film is an adaptation by Ralph Block, Alfred A. Cohn, and Myron C. Fagan of the novel "Trailin'!"
 by Max Brand.
 It was directed by Irving Cummings.
Louisiana Purchase is a musical with music and lyrics by Irving Berlin and book by Morrie Ryskind based on a story by B. G. DeSylva.
 Set in New Orleans, the musical lightly satirises Louisiana Governor Huey Long and his control over Louisiana politics An honest U.S. senator travels to Louisiana to investigate corruption in the Louisiana Purchase Company; the company's lawyer attempts to divert him via the attentions of two beautiful women, but the senator maintains his integrity and ends up marrying one of them.
 In 1941 it was adapted for the film "Louisiana Purchase" directed by Irving Cummings.
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.
A Devil with Women is a 1930 American Pre-Code film starring Victor McLaglen, Mona Maris, and Humphrey Bogart, and directed by Irving Cummings.
 Set in a Central American country, adventurer McLaglen and sidekick Bogart find themselves in a fierce competition for a luscious young woman's attentions.
 Notable for being among Bogart's earliest large film roles.
In Old Arizona is a 1928 American Pre-Code Western film directed by Irving Cummings and Raoul Walsh, nominated for five Academy Awards, including Best Picture.
 The film, which was based on the character of the Cisco Kid in the story "The Caballero's Way" by O. Henry, was a major innovation in Hollywood.
 It was the first major Western to use the new technology of sound and the first talkie to be filmed outdoors.
 It made extensive use of authentic locations, filming in Bryce Canyon National Park and Zion National Park in Utah, and the Mission San Juan Capistrano and the Mojave Desert in California.
 The film premiered in Los Angeles on December 25, 1928 and went into general release on December 28, 1928 or January 20, 1929.
Louisiana Purchase is a 1941 film adaptation of the theater musical of the same name.
 A Paramount Pictures production, the film was directed by Irving Cummings, with Robert Emmett Dolan serving as musical director as he had done for the play.
El Húsar de la Muerte (Spanish: "The Hussar of the Death" ) is a 1925 Chilean silent film movie.
 "El Húsar de la Muerte" was directed and starred by Pedro Sienna.

Question: Did both Pedro Sienna and Irving Cummings direct movies?
Answer: yes