Professor Layton and the Eternal Diva is the first feature-length movie featuring Level5's popular gentleman, Professor Layton, and his Kid Sidekick, Luke. Level-5 announced that they hope to produce more.After solving the latest Don Paolo caper, Professor Layton puts on a record, sung by his former student Janice Quatlane. The Professor and Luke recount a case she involved them with three years ago, when she invited them along to an opera at the Crown Petone opera house. After the show, the guests are flung into a dangerous game, where the prize is said to be eternal life. Meanwhile, a series of disappearances hits London, with young schoolgirls going missing. The Professor's assistant Emmy goes about investigating.The movie received favorable reviews and is currently available in Japan and the United Kingdom; Viz Media has released the US version.
At Arm's Length: Luke really does try to protect Janice but when faced with mooks, he runs afoul with this trope. And yes, he does try kicking at them.
Atlantis: Or in this case, the lost kingdom of Ambrosia. When their queen died, the people of Ambrosia drank the Elixir of Eternal Life and vanished along with their kingdom to await the day when she would return.
Batman Cold Open: The movie starts with Layton and Luke coming to the end of an investigation regarding Big Ben.
Conspicuous CGI: EVERYWHERE! Sure it's in the games, but it's very noticeable in a movie.
Cut Lex Luthor a Check: In order to find the proper test subject, the Big Bad built a cruise liner, with an opera house on it, and filled it with historical artifacts. And then blew it up. To get one test subject. That's a very expensive plan, especially since he had no way of knowing whether or not the experiment would work on the subject he got a hold of. Also, the giant fortress which unfolds into a stories-tall battle mecha with saw blades, missiles, crab claws, flailing hoses and spider legs, all with a giant pipe organ on top, which is only for playing the song to reveal the secret of immortality. And the brainwashed wolves and sharks. That's some serious security for a deserted island. Then there's the mashup pipe organ which secretly can copy a person's mind into another person. f you can do that, who needs immortality anyway? In retrospect, the giant opera house/cruise ship full of treasures and puzzles held absolutely no relevance to the villain's plan whatsoever. On the contrary, it's what brought Professor Layton and Luke in to begin with, which is basically BEGGING for your plan to be DOOMED.
Death's Hourglass: The Detragan has a series of lit candles that periodically go out, one by one. These mark how much longer it can continue to store the imprint of Melina's mind before it disappears for good.
Meaningful Name: The kingdom of Ambrosia, rumored to hold the secret of eternal life, is named after the food of the gods in Greek Mythology that gives its eater ageless immortality.
Musical Spoiler: When the Crown Petone departs from port, anyone who's played Last Specter or Miracle Mask will recognize whose theme is playing.
Mythology Gag: The film is like watching someone play a Professor Layton game, with the plot being based entirely around solving puzzles and a music player that plays the puzzle tunes among other things. Despite there only being 4 puzzles in the film, they're still numbered 001-004, just as they would be in a Professor Layton game. We're also treated to a taste of Layton's "famous intuition," when the screen goes dark and he arrives at an idea within moments.
Omniscient Morality License: Professor Layton deliberately allows people to incorrectly answer some puzzles - after being told that the punishment for such failures is death. The Big Badwas lying, but how exactly did Layton know that?
Split Personality: The Detragan unintentionally causes this as it's supposed to have Melina take over the girls' personalities. The fact that there isn't a good match forces Melina out when the host remembers herself. Interestingly, the father got so desperate, he was willing to use Luke as a subject.
The Coats Are Off: Descole flings his cape off in the sword fight between him and Layton.
The Other Darrin: Dr. Schrader, Flora and Don Paolo, during their guest appearances at the beginning, have different voices from the games. It's understandable with Flora, since Lani Minella is a U.S.-based actress and the movie was dubbed in the United Kingdom, but it is somewhat puzzling why Don Paolo has a different actor, since Chris Miller voiced both Layton and Don Paolo.
The Reveal: The game for eternal life is false and is just a way to find young girls who could, by the thanks of a machine, have their own minds replaced with Melina's memories and personality. The fact that it worked on the first subject, Janice, who willingly gave herself up to Melina, and the fact that Melina is necessary to bring back the legendary Ambrosia, is the real reveal.
There Can Only Be One: The gift of Eternal Life can only be given to the one that passes all the challenges. However, as stated above in The Reveal, it was all just a ruse to get Amelia to take on Melina's memories.