The film was released on September 13, 2009, the 40th anniversary of the premiere of Scooby-Doo, Cadê Você? (1969).
The role of The Janitor is played by C. Ernst Harth, who also portrayed Miner 49er in Scooby-Doo 2: Monstros à Solta (2004).
As stated on the side of the school buses, Coolsville High is in school district #1969. 1969 is the year Scooby-Doo, Cadê Você? (1969) premiered.
When the project was initially a sequel to Scooby-Doo 2 (2004). James Gunn wanted to tell a story where the gang visited Scotland and where the monsters would be the victims and not the culprits. This plot was canceled and later the production reduced its budget and happened to become a film direct to DVD.
The first live-action Scooby-Doo film not to have a theatrical release.