Scooby-Doo 3 was a planned sequel to Scooby-Doo 2: Monsters Unleashed that was set to be the third installment in the live-action Scooby-Doo film series.
Why It Was Cancelled
- The first two Scooby-Doo films were panned by critics, fans and audiences alike, despite being box office hits.
- After the second film was released, Matthew Lillard said in an August 2004 interview that there wasn't going to be a third film.
- Joseph Barbera died in December 2006, so that meant that he couldn't have a hand in making a third film.
- Although the first two films were box office hits, Warner Brothers was disappointed with the box office returns of the previous films.
- The film was permantly cancelled.
- There was a made-for-TV film called Scooby Doo! The Mystery Begins with mostly new cast members as the human characters. The rest of the films following The Mystery Begins were released straight to DVD.
- The series will be rebooted with an animated movie scheduled to be released in 2020 with writer Randall Green at the helm.