Official Japanese Trailer for "BIG HERO 6"
The Official Japanese Trailer for "BIG HERO 6" has more previously unseen scenes, and provides a slightly more sombre start of the story, and you can see the difference in approaches for different countries, IMHO … alas this particular trailer is in Japanese language with no English subtitles … but in a way, you don't really need them to see what has happened - a testament to the story telling, if even for a minute and a half :)