"One can turn anything into anything," said Dorfman, whose 'Death and The Maiden' was made into a movie by Roman Polanski.
"The more complex the original text, the harder it is to adapt," Supple said. "Great film adaptations often come from simple texts."
But everyone agreed that changes were necessary when a text was being adapted to another medium, since the demands of every medium are different.
Vikas Swarup, whose Q&A was turned into Oscar-winning Slumdog Millionaire, said, "When a work is being adapted, the makers should have the right to bring changes."
Faulks, who was not part of his book, Charlotte Gray, being adapted into film. Unhappy with the results, he "decided not to sell the rights of my work, unless I'm involved in some way."