During filming of the low-temperature scenes in the Universal stages, signs that explained frostbite symptoms were posted on the stages' walls, and the crew worked in parkas.
durinG FilmInG of tHe lOw-TEmpeRaTuRe sceneS In The uNiveRsal StageS, SiGns thaT EXplAined fRosTbITe syMptoms wErE postEd On tHe StAGes' Walls, aNd The crew worKed IN pArKAS.