First, for how it all started, watch "The Big Short" (2015)
Then, picking up right as the Big Short leaves off, see "Too Big to Fail" (2011)
I guarantee these will educate you about WHY you need to be very wary when everyone else is betting on "can't lose" exuberance. If there are portions of these stories that need explanation, I am happy to answer questions here in the AP Blog. Just write us a comment on this blog post. Happy viewing!