Disney debuted the full-length Big Hero 6 trailer yesterday, but it left out an important piece of background information about its hero, robotics prodigy Hiro, and his relationship with robotic nurse Baymax, who becomes his best friend and crime fighting partner after a tragic loss. A new international trailer, hailing from Japan, helps set up this important relationship, and it's easy to connect the dots though the latest footage may be in a foreign language (to most).

Watch and learn how Hiro lost his older brother Tadashi, which brings about the fateful befriending of Baymax in scenes that add a little emotional heart to the trademark Disney humor and heavy action that is on display.

With all the heart and humor audiences expect from Walt Disney Animation Studios, Big Hero 6 is an action-packed comedy-adventure about robotics prodigy Hiro Hamada, who learns to harness his genius-thanks to his brilliant brother Tadashi and their like-minded friends: adrenaline junkie Go Go Tamago, neatnik Wasabi, chemistry whiz Honey Lemon and fanboy Fred. When a devastating turn of events catapults them into the midst of a dangerous plot unfolding in the streets of San Fransokyo, Hiro turns to his closest companion-a robot named Baymax-and transforms the group into a band of high-tech heroes determined to solve the mystery. Inspired by the Marvel comics of the same name, and featuring comic-book style action.

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B. Alan Orange at Movieweb
B. Alan Orange