Screenwriter and director, most remembered for screenplays including 1959's The Big Operator and 1964's Fanny Hill.
He initially became wealthy via the Howard Hughes years, producing films at RKO.
An archive of some of his selected screenplays are in the University of Iowa's Special Collections department.
LeAnne Zugsmith, his older sister, was a writer and author.
Like heavy metal singer Kevin Dubrow, he was born in Los Angeles, CA.