Harold Antill Livingston received sole screenwriting credit for Star Trek: The Motion Picture. Initially, Livingston was hired as the creative producer for Star Trek: Phase II before finally being given his writing role for the film. Livingston has not written a feature film since Star Trek: The Motion Picture.

In 2001 he was interviewed for the “Phase II: The Lost Enterprise”-special feature on the Star Trek: The Motion Picture (The Director’s Edition) DVD. A father of four, his daughter Leah appeared as one of the Enterprise crew members in the recreation deck scenes in the film her father co-wrote. (The Making of Star Trek: The Motion Picture, p. 38)