But the two films have put lots of money into the bank for Sony, and even the previously sequel-shy Tom Hanks (Toy Story aside) came back on-board easily enough. And thus, the cinematic adventures of Robert Langdon and his haircuts are set to continue, as Sony is pushing ahead with the film version of Brown’s latest book, The Lost Symbol. The book is apparently the fastest selling adult novel of all time, and hence Sony is keen to capitalise on that as soon as it can. Try to make the film a bit interesting this time, though?