▁set ▁of ▁the ▁film ▁Top ▁Hat ▁in ▁ 1 9 3 5 . ▁He ▁hum med ▁the ▁mel ody ▁to ▁A sta ire ▁and ▁the ▁film ' s ▁director ▁Mark ▁Sand rich ▁as ▁a ▁song ▁possibility ▁for ▁a ▁future ▁A sta ire - G inger ▁Rog ers ▁vehicle . ▁A sta ire ▁loved ▁the ▁t une , ▁but ▁Sand rich ▁passed ▁on ▁it . ▁Berlin ' s ▁assignment ▁for ▁Param ount ▁was ▁to ▁write ▁a ▁song ▁about ▁each ▁of ▁the ▁major ▁hol id ays ▁of ▁the ▁year . ▁He ▁found ▁that ▁writing ▁a ▁song ▁about ▁Christmas ▁was ▁the ▁most ▁challeng ing , ▁due ▁to ▁his ▁Jewish ▁up br ing ing . ▁When ▁C ros by ▁first ▁heard ▁Berlin ▁play ▁" White ▁Christmas " ▁in ▁ 1 9 4 1 ▁at ▁the ▁first ▁re he ars als , ▁he ▁did ▁not ▁immediately ▁recognize ▁its ▁full ▁potential . ▁C ros by ▁simply ▁said : ▁" I ▁don ' t ▁think ▁we ▁have ▁any ▁problems ▁with ▁that ▁one , ▁Ir ving ." ▁ ▁Although ▁" White ▁Christmas " ▁has ▁become ▁icon ic , ▁this ▁was ▁not ▁the ▁original ▁intention . ▁The ▁song ▁" Be ▁Care ful , ▁It ' s ▁My ▁Heart ", ▁played ▁during ▁the ▁Valent ine ' s ▁Day ▁section ▁of ▁the ▁film , ▁was ▁originally ▁intended ▁to ▁be ▁a ▁bigger ▁hit ▁when ▁production ▁of ▁Hol iday ▁Inn ▁comm enced . ▁ ▁The ▁song ▁is ▁used ▁during ▁the ▁Christmas ▁hol iday ▁sections ▁of ▁the ▁movie , ▁most ▁not ably ▁when ▁it ▁is ▁introduced ▁to