Creator Killer: Before the release of the movie, Willard Huyck had directed three movies, and he and wife Gloria Katz (who co-wrote Howard The Duck) had collaborated with George Lucas on many projects like American Graffiti, Indiana Jones and the Temple of Doom and even A New Hope. Since the failure of Howard, they haven't worked on a single theatrical release, with their only subsequent credit being Radioland Murders — and even then they only got credit based on a draft of the screenplay dating back to 1974.
The film also caused Frank Price to resign as the head of Universal Pictures. Variety reported it with the headline "'Duck' Cooks Price's Goose".
John Barry, who scored the film (and had part of his music replaced in the finished product by Sylvester Levay, most notably for the scene with the Ultralight), also wasn't too proud of this movie. (Let's face it, who was?)
Lea Thompson doesn't mind being associated with this film.
What Could Have Been: The DVD featurettes of the film mentions that the writers were talking about the film being worked out as an animated film. The featurettes also mention that the idea to make the film animated was scrapped because the studio wanted the film to be released in the summer of 1986, and there's wasn't enough time to produce an animated film. One can wonder what would have happened if we had gotten an animated feature of Howard the Duck. The closest thing we can get, is this fanmade animation of Howard.