Well, now there's a even more informative review in Slate of the two (not just one) new books about her.
She was even loopier than I first imagined:
Her diaries from that time, while she worked as a receptionist and an extra, lay out the Nietzschean mentality that underpins all her later writings. The newspapers were filled for months with stories about serial killer called William Hickman, who kidnapped a 12-year-old girl called Marion Parker from her junior high school, raped her, and dismembered her body, which he sent mockingly to the police in pieces. Rand wrote great stretches of praise for him, saying he represented "the amazing picture of a man with no regard whatsoever for all that a society holds sacred, and with a consciousness all his own. A man who really stands alone, in action and in soul. … Other people do not exist for him, and he does not see why they should." She called him "a brilliant, unusual, exceptional boy," shimmering with "immense, explicit egotism." Rand had only one regret: "A strong man can eventually trample society under its feet. That boy [Hickman] was not strong enough."I take it she would have been laughing and cheering in all the wrong places during Silence of the Lambs. (And probably weeping when Hannibal was so cruelly being carted around on a trolley in a straightjacket.)
Really, I don't know how anyone can trust her take on anything (economics, morality, government, whatever) when she was such a fruitloop.
And also, now that she's been dead for quite a while, isn't there scope for a very funny satirical film about someone like her?
Finally, I get the impression that this bit sums up her most famous novels well:
Her heroes are a cocktail of extreme self-love and extreme self-pity: They insist they need no one, yet they spend all their time fuming that the masses don't bow down before their manifest superiority.