The animation has come a really long way in the past ten years. The human characters in this film look ten times better and more realistic than in The Incredibles. Also, it's set in the fictional city of San Fransokyo (a combo of San Francisco and Tokyo) so if you watch it more than once (like if you have kids that insist on watching the same movie 100 times) have fun looking for famous buildings from both cities. I found quite a few.
The story centers around two brothers, both geniuses in the robotics/engineering world. One, Tadashi, is a college student who builds Baymax, a white inflatable robot nurse. The younger one is Hiro (the hero of the story, you get it?) a fourteen-year-old who participates in illegal battlebot games. Tadashi convinces Hiro to apply to college by taking him to his lab (once, he's not a hard sell) and meeting his friends and all their neat inventions.
Go Go is a tough girl who tells people to "Woman Up!" and works on a frictionless bike, and Honey Lemon is a Rapunzel look-alike (seriously look at her face. Azalea had a phase where she watched Tangled several times a day. I'd recognize that face anywhere.) who works with chemical reactions. Wasabi (who is called that because he spilled wasabi one time) is a neat freak who works with lasers, and then there's Fred, who doesn't attend school, but loves science.
Hiro invents mind-controlled microbots to impress the college enough to let him attend. The masked villain steals the microbots and Hiro, along with Baymax and his friends, track him down. Also, Disney has finally graduated from killing off parents during children's movies because they died before the story even starts. Hiro turns Baymax from a sweet healthbot into a fighting machine.
My favorite character is Fred, whose dream is to become a fire-breathing murloc. Follow your dreams. Also, Baymax is the real star of the movie. He was programmed to treat pyshical ailments, but when Hiro is depressed, he downloads an entire database of depression and grief help just for him. He unquestioningly follows him on his quest to turn him into a armor clad superhero, and only stops to prevent killing someone else.
The movie is funny and self-aware at times. "This is our origin story!", Fred cries. He is also the one to realize they are being chased by a supervillain. And, we get to watch their training as well. They are not as good as they could be. Since it's a Marvel film, we know the villain is going to open some portal (this time a Stargate-like teleporter) and they have to fight him to stop it. And they succeed. The animation is wonderful and is one of the best parts of the film. The city looks beautiful and the people look real. This film won best animated picture this year. I will give it a 9/10.