Career
Hollingshead began his career as an assistant director, with his first work being the 1916 film The Shrine Girl, in which he also had an acting role. Through the silent film era, Hollingshead assisted in the direction of thirteen films, and continued as an assistant director until 1934. He produced his first film, Morocco Nights, in 1934.
This started him on the path of producing, which would lead to enormous success.
From 1934 to 1953, Hollingshead produced 174 films and film shorts. In 1944, he produced the 16-minute film I Am an American, featured in American theaters as a short feature.
The film was created in connection with "I Am an American Day", now called Constitution Day. He was residing in Balboa Island, California at the time of his death on July 8, 1952, aged 60.
Three of his short films were released posthumously in 1953.