[2] Bergman broke into the film industry by writing the original screenplay (titled Tex X) that served as the basis for Mel Brooks's classic Blazing Saddles (1974), and was among the writers who adapted it into its final state.
He was later the sole creator of the TV sitcom pilot adaptation called "Black Bart" starring Louis Gossett Jr. for CBS which aired only once on April 4, 1975.
Warner Bros approached him to write a sequel to Freebie and the Bean with Peter Falk and Alan Arkin.
In 1987, The Lobell/Bergman Company, which was a joint venture with producer Michael Lobell, had signed a first-look deal at Universal Pictures to handle film production of various movies.
He executive produced a number of movies including Chances Are (1989), White Fang (1991), Undercover Blues (1993) and Little Big League (1994).
The film gives writing credit to Roger Angell, Bergman, Monica Johnson and star Albert Brooks.
In 2007, Bergman received the Ian McLellan Hunter Award for Lifetime Achievement in Writing from the Writers Guild of America.