While Tweety and Aoogah are merely friends in El vuelo al mundo de Piolín (2000), in King Tweety they are blood-related cousins.
The Lanzarote grape fields the characters visit for the juice tasting are a real location in the Canary Islands. While the grapes are used to make grape juice in the film, in real life they are used to make wine.
This film was created to commemorate Tweety Bird's 80th birthday.
The characters Melaney Blank and John Foray are named after famous Looney Tunes voice actors Mel Blanc and June Foray.
The Chiff Chaff is a real bird native to the Canary Islands. In contrast to the film, a real life Chiff Chaff is relatively tiny, about the size of a sparrow.