Man, I'm suuuper late to this party....
Anyways, Die Hard is and is not a Christmas movie at the same time. And it depends on your definition what makes a Christmas movie.
I'm gonna take an insane detour here that'll make sense.
Is Star Wars Episode 4 a science fiction movie?
That setting is futuristic, sure, must be sci-fi then. Lasers, Spaceships, Robots, the works. The checklist is done. Sci-Fi.
But what are the themes it touches upon, what is the story?
A young farmer's boy (naturally an adoptred orphan) named Luke is dragged into a rebellion against an evil king (Palpatine) by accident. When the boy get's hold of a pretty princess' (RIP Carrie Fisher) message to an old ally and menthor (Obi) through the fault of her two comic-relief servants (Robot-slaves), he decides to seek the adventure he's yearning for. He finds the old man (by fucking up) and both seek the next harbor to board a ship to join the resistance. The hire smuggler/pirate/bandit/nerfherder Han and his foreign friend Chewie and cross paths with the black knight Lord Vader, the evil kings enforcer. Hijinks ensue, princess rescued, the magic castle/ship/train of the evil king get's destroyed and everyone gets a medal.
What's exactly sci-fi here?
That could play out in medieval times. Or ancient greece. Or the wild west. Or on Christmas.
The setting and the genre are two different things and both determine what you'll label a story with.
Alien is a horror movie, a slasher. Aliens is a war movie. Alien³ is a horror movie of the animal-gone-maneater kind. Alien: Resurrection is a disaster movie (hihi).
They're all sci-fi, like Star Wars. Because of the setting.
Now look at Star Trek: The Next Generation Season 2 Episode 9 'The Measure Of A Man'.
Lasers, spaceships, robots, the usual. What is it about?
A Robot who's so sophisticated that he has to go to trial to prove he's not property but a real boy. Sure, you'll say, I've seen Pinocchio and I can see african men argue the same stuff in the 18th century. The point of the story is not only that is humanity is questioned, the point is he's an artificial lifeform. The question is not only 'What makes you a person?' but also 'When does artificial intelligence become an artificial person?'
That shit won't work in a setting without spaceships and robots. That's sci-fi because of its story.
So, setting and story are both what makes you label a movie a certain way but they're not the same.
Die Hard. Happens on Christmas. Could be Thanksgiving too. Setting interchangeable.
Story? Doesn't contain any christmas-related themes beyond two estranged family members become closer again. That could happen at a funeral as well.
I'm in my mid-thirties and I love Die Hard. It's one of the best 80's action movies. I can watch it anytime and I've seen it at least 20 times (noit joking here). But mostly in the summer. But I understand the question and its diverse answers perfectly well.
Die Hard is a christmas movie if it feels like one to you. For me, Lord of the Rings (especially Fellowship) feels like a Christmas movie to me. I've seen them all in theatres in December, I watched them on VHS and Blu-Ray only in December so far. They have fuck all to do with the occasion but this year was the first one I didn't watch any of them in December. And I feel I missed something this year. I'm not sure I can watch them at this time of the year.

Carnivore;
JesusHitler-Race War-Male Supremacy-and end with Thermonuclear Warrior.
Of course, they would have to resurrect Lord Petrus, but I'm game.

Part 1
http://videosift.com/video/Doom-Resurrected-To-Hell-and-Back-Part-1
Part 3
http://videosift.com/video/Doom-Resurrected-Guns-Guitars-Chess-on-Mars-Part-3

Part 2
http://videosift.com/video/Doom-Resurrected-Designing-a-First-Impression-Part-2
Part 3
http://videosift.com/video/Doom-Resurrected-Guns-Guitars-Chess-on-Mars-Part-3

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Just got around to reading The Quantum Thief, which you recommended about a hundred years ago in one of the 'what are you reading' threads. Thought I'd send a little note of thanks since I really liked it and don't think I would have come across it on my own.

Constructing a sort of crime novel around the subtle implications of technologies that don't exist yet must be difficult work. When a break in the case comes about because the detective realises that, oh of course, since the thief used the key to his encrypted external memory to steal his identity, that must give him access to recordings of the thief's activities during the few minutes of the impersonation, and what's this, he used a quantum entangling drone to beam only one stolen minute of Time away from the victim, there's only one thing that can mean: to the resurrection house! - well it's a step above bootprints in the flower bed isn't it? And calling time-rich nobles 'millenniaires'...mmm, juicy.

Let's fill up the court, indeed!

As Queen, I do hereby officially offer Princesshood to the great and glorious (and actually living pretty near me) @PlayhousePals. Wanna be crowned, Play?

We need a Merlin. A Wise One. One with benevolence and love and an all-seeing eye to look out for us all.

He knows who he is for me. He already looks out for us, for which I am grateful.

No need for any Knights in Armor, shining or otherwise. Mine is a peaceful queendom. (Well, striving for peace. Your Queen has some stuff to work on still.)

And my King? Paul Newman, please. Since this is fantasy, I can resurrect the dead and turn back time.

Nothing about this looks appealing. Jumping from "reconstructing ship" to "destroying recently reconstructed ship" does nothing for me. Clearly nothing is sacred and everything can be pooped back out brand-new, this incarnation already has its first resurrected character, so what's at stake here?

Ever since Wrath of Khan, Star Trek writers have been convinced they can only produce Khan-a-likes as a path to success. I was only partially onboard after the first film, I checked out completely after the last one, but I'm particularly surprised at the laziness of this one. The CG and action direction seem to be the only areas that are getting any creative engineering in any of these films.

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