"How Am I To Know?"-1929-Robbins Music-sheet music. This item is a 9" X 12". mounted color sheet music featuring the 1929 Cecil B. Demille film-"Dynamite".Cecil Blount DeMille (August 12, 1881 – January 21, 1959) was an American filmmaker. Between 1913 and 1956, he made seventy features, both silent and sound films. He is acknowledged as a founding father of the Hollywood film industry, the most commercially successful producer-director in cinema history..............Dynamite is a 1929 American drama film produced and directed by Cecil B. DeMille and starring Conrad Nagel, Kay Johnson, Charles Bickford, and Julia Faye. Written by Jeanie MacPherson, John Howard Lawson, and Gladys Unger, the film is about a convicted murderer scheduled to be executed, whom a socialite marries simply to satisfy a condition of her grandfather's will. Mitchell Leisen was nominated for the Academy Award for Best Art Direction........A hand signed cut signature by Cecil B. Demille with a fountain pen in black has been affixed to the front. The cut signature portion is approximately 1" X 4 1/2"....................BOTH SHEET MUSIC AND AUTOGRAPH ARE IN VERY GOOD CONDITION.