I would suggest "The Big Short". It mainly focuses on the huge disaster of the 2008 financial bubble, and what led up to it.

Before watching the movie I had this feeling of how impossible it could have been for so many normal people to be screwed over so royally. The crisis obviously happened, but I lacked the understanding of how something like that could have happened. After the movie it was clear to me how systemic issues can be institutionalized if everyone is willing to look the other way.

Also, if you watch that movie and start hating everyone working with finance I recommend watching "Margin Call" and you'll only hate some people working in finance.