The huge cuddly white robot in "Big Hero 6" could hardly be less like a typical Marvel superhero -- and yet the Michelin man-style star could be a sure winner for studio giant Disney.
The movie, to be released on Friday in the United States, is Disney's first based on Marvel comic book characters since it bought Marvel Entertainment Inc. in 2009.
Set in fictional San Fransokyo, the Japanese-themed film tells the story of young Hiro Hamada, a robot-obsessed nerd who is devastated when his older brother Tadashi dies in an accident.
Baymax is the inflatable robot Tadashi was working on before his death. He is designed to care for sick humans, which he promptly does for the depressed teenager.
Along with six friends, Hiro and Baymax embark on a dangerous mission to hunt down the thief who stole Hiro's latest creation: tiny microbots which can form themselves into any shape and be controlled telephathically.
Hiro's friends are voiced by a star-studded cast, with Jamie Chung voicing for GoGo Tamago, Damon Wayans Jr for Wasabi, Genesis Rodriguez for Honey Lemon and T.J. Miller for Fred.
The movie is directed by Don Hall, whose past credits include "Winnie the Pooh," and Chris Williams, who co-directed "Bolt."
It is produced in part by the team which won Disney's first animated Oscar with princess blockbuster "Frozen."