I always felt kind of uncomfortable about a film where the whole joke is that Americans (I'm an american myself) are going to assassinate the leader of another country (no matter how tyrannical that leader may be). I mean imagine if North Korea was releasing a film where silly North Korean comedians were sent on a mission to murder Obama? I'm all for freedom of speech, but this movie always felt a little off to me.
I dunno, I'm OK with comedies dealing with otherwise very serious political issues. I mean, Dr. Strangelove is about nuclear war which was a very real fear for people at the time.
Also, I would watch your hypothetical film with silly North Korean equivalents of Seth Rogen and James Franco.
I too would watch this North Korean film.
Also, however you may feel about the "serious political nature" of the film, I highly doubt we'd threaten a fucking terrorist attack against NK if they made a comedy about killing Obama.
I guess for me the sticking point was that the film never quite felt like satire. The difference between this and say Dr. Strangelove or Team America for me was that in those movies the Americans AND the enemy (be they Kim Jong Il or the Russians) were ludicrous, especially with Dr. Strangelove. This film on the other hand seemed to tacitly accept that real world Kim Jong Un deserved to die and that it was ok to use that as the starting point for a movie.
Also in retrospect, I would also watch that hypothetical movie, but I guess the point I was trying to make was, if you don't quite understand American culture and where this probably very silly and light-hearted film fell into it, you could see this as a legitimate threat.
But, again, Free Speech is awesome and I'm never in favor of terrorism or the threat of terrorism as an answer to any problem.
EDIT: I'd just like to say how awesome it is that everyone is having a civil discussion about this. Go team!