TheGodling
Los Ingobernables de Sala de Cine
If you look at the "bad guys" as anti-hero protagonists, then Die Hard really IS similar to a negative version of How the Grinch Stole Christmas. They intentionally changed them from real terrorists to thieves pulling an elaborate heist in order to make them more relatable. Opening the vault is compared to a Christmas Miracle several times, and when they finally get the vault open you see Theo running through the vault opening crates like Christmas presents as they play Christmas music in the background.
You could say that the only thing that stops it from being a 100% Christmas movie is that Hans and his crew never learn the "true meaning of Christmas".
One of the best posts in this thread. The movie definitely plays up to a lot of classic christmas themes but what the movie also does right is not play them up too much so they detract from the action movie at the core.