Andy Samberg’s SNL Shorts are often very clever. This one’s just a fun one that includes a cameo from The Arcade Fire, but it also satirizes the United Nations. Not sure it works as an assignment, but it might spice up an IR class?
It might, however, be a good segway into why the UN doesn’t behave the way many (especially those, like me, who did Model UN in high school & college) often assume. Delegates represent their states’ interests, not necessarily some higher moral compass. And the UN is primarily a forum for states, not an independent organization that creates—let alone enforces—international law.
(Sorry you have to suffer through an ad to watch the 2:31 minute-long SNL short.)