Level 5, developers of the highly popular Professor Layton series for Nintendo DS, has announced that the Professorís firest feature-length film,Professor Layton and the Eternal Diva, will be released on November 8, 2011. Originally announced for North American release at Anime Expo in July, the film has Professor Layton and his apprentice Luke trying to solve a number of mysterious disappearances, and deduce how they might be related to a famed opera house. The film will be available on Blu-ray and DVD.