This is a movie that illustrates very well the way Mexican politics were handled for so many years by the ruling party (PRI), unfortunately some of it still remains, if not all.
I own the Spanish VHS version and to me it was hilarious while at the same time very realistic.
A word of warning: if you are not Mexican or at least from other latinamerican country, you might not get all the jokes, or reasoning behind some actions. You have to be familiar with the culture. Then again, if you buy it, you may watch it again, perhaps in the company of a hispanic friend.
I really recommend it both as a comedy, and as a "general culture" must-have.
As a bonus, you will learn several Spanish bad words, should you want to impress your friends!