Black Panther. Best Marvel movie yet, and this is coming from someone who generally doesn't enjoy Marvel movies. So many relevant topics we could relate to were touched on, including tribalism, what it means to be a citizen of the country, and also foreign relations, like whether if we should aid other countries or only help our own. Lots of politics here.
Killmonger is also an excellent villain, very relatable and sympathetic. Marvel totally knocked it out of the park with this film. Can't wait for Infinity War.