Josephson began his career in entertainment at Landers/Roberts Productions, overseeing the music division's interest in feature film and television programming and there was involved with the popular sequel, Death Wish II (1982).

During this time, Josephson also helped found Sandollar Films, whose production has included several of Dolly Parton's made-for-TV movies and specials; Tidy Endings, an HBO adaptation of Harvey Fierstein's play, Safe Sex; and such feature films as Gross Anatomy and True Identity (both 1989).

[1] During his tenure at Columbia, Josephson was responsible for such popular films as In the Line of Fire (1993), Bad Boys (1995), Men in Black, Air Force One, The Fifth Element, and Anaconda (all 1997).

[2] The two joined The Walt Disney Company (Touchstone Pictures) as Sonnenfeld Josephson Worldwide Entertainment for a three-year production term.

Most recently, he initiated the television adaptation of Washington's Spies, Alexander Rose's historical account of espionage during the American Revolution.