Die Hard's writer has settled the Christmas movie debate
is indeed a Christmas classic. Steven E de Souza gave us a handy checklist while appearing on the Script Apart podcast, comparing it to the "baseline" Christmas movie – 1954's White Christmas. In his examination, he notes that Die Hard takes place entirely in the Christmas holidays, while only the first and final scenes of White Christmas are set during the holiday season. The entirety of Die Hard is also at a Christmas party, while only the end of its 1950s counterpart is. Interestingly, there are four Christmas songs in Die Hard, compared to only two in White Christmas, and in
Source: digitalspy.com