Star Wars: The Clone Wars
The animated Clone Wars story started as the upcoming television show. George Lucas decided the animation and story was good enough for a feature film.
The animation style is similar to Japanese Anime, and the characters move like the puppets from the Thunderbirds television show. 
The movie opened in 3rd place, meaning more people went to see The Dark Knight than the brand-new Star Wars movie. Reviews were mixed and mostly negative, earning the film a 17% rating on Rotten Tomatoes.  Many critics have compared it to an over-long Saturday morning cartoon.