'Die Hard' Definitely a Christmas Movie, Says Film Historian on CNN

Film buffs have debated whether 'Die Hard' is a Christmas movie or not for years -- but now, a guy who's very familiar with the art is settling it once and for all ... and he says, yea.

CNN's Jake Tapper featured film historian and author Jeremy Arnold on his show the other day, and they were there to discuss his new book -- 'Christmas in the Movies' -- and eventually JT landed on the age-old question ... is 'DH' actually a holiday classic???

According to Arnold, it absolutely is ... but he also explains that the reason some feel it isn't has to do with how they define Xmas movies, traditionally speaking.

Despite that, though, Arnold argues 'Die Hard' has all the tenets of a Christmas movie from the jump -- starting with the fact that Bruce Willis' John McClain is attempting to reconcile with his estranged wife ... that ends up being the backdrop of everything else that follows.

Tapper agrees, and he points to more evidence that 'DH' undoubtedly rings of Xmas throughout -- even though it's obviously an action flick. He actually points to the climax to make his point. Spoiler alert ... he uses presents to kill the bad guy terrorist, Hans.

All this is to say ... 'Die Hard' has all the trappings of Christmas, albeit embedded in a lot of violence and cool lines through a walkie-talkie. Of course, some still feel differently.