If you bought the S&P 500 immediately PRIOR to the collapse in 1987 and held on for 10 years you earned over 14% annually. So, I’d say Oliver Stone was a contrary indicator the last time around.
Personally, I don’t expect the stock market to do well at all over the next decade. But paying attention to anything Oliver Stone says regarding the economy is probably hazardous to your financial health. That a new Wall Street movie appears right now probably says more about the health of Oliver Stone’s balance sheet than that of anyone else.