Movies=non-canon. Kishimoto had nothing to do with them, and thus they are not considered truth. He stated in the manga that Hyouton was Haku's Kekkei Genkai, and could not be mimicked with Sharingan or learned by another.
The Hyouton jutsu in the 1st Naruto movie required snow and ice to be present in order to use them, so using it regardless of surroundings is out of the question. KG Hyouton, however, seems to vary between requiring water(Senatsu Suishou) and forming ice from moisture in the air(Demon Ice Mirrors, Haku's mirror travelling).
Edit: Should I come across as argumentative to anyone, I'm not trying to be-- I'm just trying to state my points. After all, this is the discussion board. ^__^;