He spent a year in flight training at the Randolph Air Force Base before heading to Hollywood, where he became a reader in the story department at Universal Pictures.
During World War II, Blaustein produced training films for the United States Army Signal Corps in Astoria, New York.
Following the war, he returned to Los Angeles and joined David O. Selznick Productions.
Two years later, he joined 20th Century Fox, but in 1955 he left the studio to become an independent producer under the Phoenix name.
After retiring from the film industry, Blaustein became an Adjunct Professor of Communication at Stanford University, where he taught documentary writing and directing and supervised a Master's program in screenwriting.