Okay, then i´ll have to explain: A movie is done once, then the settings are dumped (or whatnot). It´s not like you could just ´patch´ a movie - the relative (to the original movie, as well as compared to a game) cost is just much higher.
Also a movie only has a function on emotional level - if it ´works´ it will induce emotions on you. A game has, aside from that, many other -internal- functions. One could say, that a game like HoI3 probably has an extreme amount of such. The first sort of function, can only be evaluated subjectively - a movie does or does not ´work´ (e.g. seem believable) for you. The second sort of function can be evaluated objectively: America getting all of germany without taking part in the war is as broken to me as to anyone else (i think, that´s save to assume). CTDs are more clean cut examples of the latter.
A movie, you watch once, and you are pretty much done with it. Not so in a game. From a movie, you expect to be entertained for its duration (+ some minutes, if you really liked it, maybe) - not so with the game. That means, that a failing movie is like ´mehh - not my cup of tea, but whatever´, wheras a failing game is total dissappointment and many more hours of expected entertainment not delivered. Esp. in Hoi3, where you sink hour upon hour into the build up, only to have it all spoiled somewhere along the way, by some quirk.
If anything, i´d compare a movie to one game (match) of HoI3. One could count the times i tried to enjoy vanilla for a bad movie each (or most of them anyways). It´s more like getting the whole ´Police academy´-series, going through all of them, each time thinking ´now this one must be better than the last - hope it will at least be worth the hours watching it...´ - and we all know it´s not (´police academy´, i mean).