Big Hero 6

"unobtanium", heh ; o )

Power: Li-On batteries (?)
Scanning technology--whole city (?)
Ms. Cass--no clue about what's going on
Professor Callaghan--seems pretty likeable, normal guy, builds a lab full of seemingly well-adjusted students, very functional program...then turns out to throw it all away for a micro-bot which he would get access to anyway, when Hiro joins his lab (probably something he completely controls)
Robot fighting web site: illegal, but widely available online?
Fred's butler: he's seen things...unflappable. Bravo.
Maker culture: 3D printers, 3D scanners, movie-OS (Dawn's observation) user interface...ala Tony Stark, unlimited power, resources, and materials to build with...Hiro made tons of microbots; software: neural interface, medbot OS, AI, and so forth
Honey Lemon: manic

In a world...where all of this seems near-future...