One additional archetype I'd like to add to this mix:
"Insert Cause Here" is obviously right!
This is basically a propaganda structure, designed as a vehicle for a particular worldview, with the protagonist having Mary Sue tendencies and the antagonist being an over-the-top straw man. If you agree with the movie's message you may enjoy it (although it's not exactly a message film then, is it?); if not, you will probably revile the experience (something about being represented by an over-the-top evil straw man doesn't fit well with many people), assuming you even see it in the first place. It may have an actual plot to go along with its message, or the message may play second-fiddle to whatever else the film is up to, but the subtext is always there, always pushing its viewpoint at anyone watching the movie.
In the past (say, the 60s and before), I suspect these films tended to be Christian vehicles; I can't really speak to this as I am not that much of a nostalgia critic (seewutIdidthere?); in the present, they seem to be overwhelmingly liberal in nature. "V for Vendetta," (anti-conservative) "Kingdom of Heaven," (anti-Christian) "The Kids are All Right," (pro-gay marriage) "Avatar," (environmentalism, anti-conservative, anti-globalism/imperialism) and dozens more.
And if the main plot isn't a finger-pointing menace, there will be at least one minor character, there to set up a particular viewpoint/people group and then to die/lose horribly in a way that makes it crystal clear what the authors think of that particular viewpoint. For just one example, Outlander (a forgettable film about Beowulf from 2008) has a Christian straw man who's basically in the movie to present his viewpoint (promptly ignored by the main characters), then demonstrate its flaws by dying horribly to the monster.
This structure is sort of an extension of your last listed item ("The distinguished gentlemen from the Generic Party has the floor."), only rather than indicting the movies in question for not outright labelling their pointing fingers, I'm concerned that they're pointing fingers at all. "Prince of Persia" would (in my opinion) have been a better movie had it not tried to draw parallels to the Iraq war, and it would have been a lot easier to sit through, too.
Half your potential audience is conservative, Hollywood. You do yourself no favors by making fun of us in your movies.