Bad side: a good part of the movie is more sensationalism, taking a lot of time to underline that people in the financial sector spend their money in drug, whores and expensive yachts. (how they spend their money is, IMHO, completely irrelevant, the interesting question is how they earn that money)
Watch that part again: clients were having the prostitutes charge the finance companies they worked at, rather than pay for it out of their personal pocket.
Money that, might I add, was basically stolen out of investor's pockets.
So congrats, your grandmothers' 401ks were used to pay for hookers for rich healthy people while your grandmother can't retire anymore and must take on debts for her medical bills.