He might actually read it:

But while there is a new young (possible) protege character, played by Shia LaBeouf, as Stone discusses [Wall Street 2] it sounds like the banking system will be the biggest new character. “It’s a relatively complex story,” he says, “and we’re trying to do justice to the new Wall Street.” The new film will skip the stock market trading floor, which in 1987, before internet stock trading made the system available and comprehensible to everyone, was foreign territory. Now the action will happen in the Federal Reserve building. “In the original ’87 movie there was no Federal Reserve, we didn’t get into that,” says Stone. “But now the world has changed radically. This is part of the bulwark of the system.”