Butch Cassidy and the Sundance Kid (1969)

Entered American film as an uncredited boom operator for TRADER HORN in 1931. Worked largely uncredited until 1960 on such MGM films as ONE NIGHT OF LOVE (1934), ROSE-MARIE (1936), ROSALIE (1937), MARIE ANTOINETTE (1938), THE WIZARD OF OZ and ANOTHER THIN MAN (both 1939), SHADOW OF THE THIN MAN (1941), I MARRIED AN ANGEL (1942), THE CROSS OF LORRAINE (1943), NATIONAL VELVET (1944), THE PICTURE OF DORIAN GRAY (1945), KILLER McCOY (1947), TENTH AVENUE ANGEL (1948), and SINGIN' IN THE RAIN (1952). In 1960, Edmundson began to receive credit as a sound mixer for such features as THE GALLANT HOURS (1960), BUTCH CASSIDY AND THE SUNDANCE KID (1969), VANISHING POINT (1971), CHILD'S PLAY (1972), INVISIBLE STRANGER (1976) and THAT'S ENTERTAINMENT, PART II (1976). He also worked in television, in both series television ("The Twilight Zone", "Combat") and made-for-TV movies. He retired in 1977.  Nominated for Sound 1969: BUTCH CASSIDY AND THE SUNDANCE KID (w. David Dockendorf) 1 nomination