You can spot the 85-year-old mouse in the quickest of cameos in "Frozen" at a place Anna discovers after she ventures into the cold forest. A tiny Mickey Mouse plush toy sits on one of the lower shelves in Wandering Oaken's Trading Post and Sauna.
Hilarious disclaimer at the end of the film: "The views and opinions by Kristoff in the film that all men eat their boogers are solely his own and do not necessarily reflect the views or opinions of The Walt Disney Company or the filmmakers. Neither The Walt Disney Company nor the filmmakers make any representation of the accuracy of any such views and opinions."
It was revealed through a series of "Fun Facts" circulating throughout various "Frozen" fan pages that if Olaf had melted while in front of the fire, that would also have constituted an act of true love.