The British supermodel-turned-actress stars in the movie adaptation of Green's novel, but her promotional duties hit a snag on Tuesday (28Jul15) when she sat for an interview for Good Day Sacramento via video link from New York.

The catwalk star appeared tired and bored during the questioning, leading to an awkward exchange with the hosts, and Delevingne subsequently blamed the taught exchange on the American presenters failing to understand her British sense of humour.

Green, whose other novel The Fault in Our Stars also became a hit film, has now thrown his support behind Delevingne and criticised the TV hosts for failing to engage her with proper questions.

He writes in a post on his blog, "The anchors of Good Day Sacramento refer to her as Carla and then ask her whether she read the novel Paper Towns... The interview goes downhill from there... and then they tell her to take a nap and cut the interview short.

"I am friends with Cara... I spent more than a month with her on tour in Europe and the U.S., and I watched as again and again, she was asked this question...

"The whole process of commodifying personhood to sell movie tickets is inherently dehumanizing. The TV people want some part of you, and in exchange for it, they will put the name of your movie on TV. But in that process, you do lose something of your self...

"Cara, however, refuses to stick to the script. She refuses to indulge lazy questions and refuses to turn herself into an automaton to get through long days of junketry. I don't find that behaviour entitled or haughty. I find it admirable. Cara Delevingne doesn't exist to feed your narrative...  and that's precisely why she's so f**king interesting."