It's a kiddie film, obviously. It's PreCure. It's a superhero franchise where the heroes are little girls in frilly dresses and no one ever gets killed. That said, though, I think this is also a mixed bag as a PreCure film. It's one-third boring and two-thirds good fun.
The problem is, unfortunately, because of KiraKira PreCure A La Mode. The 2017 series is cooking-themed. That's why I didn't watch it. That's entirely my personal prejudice, obviously, and fans of this particular PreCure series are probably queueing up to burn me at the stake. However I did watch this film and... yes, the cooking scenes are indeed a bit of a chore. Our heroines have gone to Paris ("tres bien!") to make sweets. They cook. They meet an old mentor called Jean-Pierre, who's also a cook. Cooks talk about cooking. "Totemo c'est bon desu yo," says someone who wanted to hurt me, but at least that managed to stand out in what was otherwise a forgettable (if good-natured) twenty-minute wibble about cooking.
My favourite thing here was the surprise appearance of the previous year's PreCures. That was cool, although I might have gone through the roof if we'd had the Go! Princess PreCures from the year before.
After that, though, a baddie shows up and the film decides to start being entertaining. Sweets come alive as monsters and turn Paris into confectionary. It's like the City of the Gingerbread Houses. After that, the PreCures get turned into cute animals. There's a penguin, a sloth, etc. Seeing a turtle trying to do superhero stuff is amusing. All that I enjoyed.
At one point, the Mahoutsukai PreCures even get to save the day! Awesome.
Unfortunately the film degenerated back into cooking at the end, but not before we'd had the baddie using Jean-Pierre as an ingredient in his own sweets. (He's a bit worrying and cares about nothing except sweets, but don't worry. He'll be okay.) We also get to see a PreCure knocking over the Eiffel Tower by headbutting it.
There's also a six-minute short before the main story, in which three years' worth of PreCure mascot characters say "pafu", "roma", "mofuru", etc. at the end of their sentences. Curiously this short also adheres to the "one-third boring cooking" rule, but after that a yellow dragon snake comes out of the cooking bowl and tries to eat everyone.
There's a pretty good and moderately bonkers PreCure film in the mix here, but unfortunately it's got a layer of that other stuff too. It's not horrible or anything, but it might make you go to sleep. Also there are the usual Miracle Lights that got handed out to the children in the cinema audience, who'll wave them at the right time and help defeat the baddies! It's like anime panto. I'm becoming inexplicably tolerant of this oddity of PreCure films, but it's probably just Stockholm Syndrome. I'm quite glad I saw most of this film, but it also reassured me that I made the right choice in skipping this year's PreCure series.