I use intuition, geometry to make films: Christopher Nolan

Nolan who has directed films like Inception, The Dark Knight trilogy and Interstellar draws a lot of diagrams and takes inspiration from etchings by mathematically inspired Dutch graphic artist Escher.

"The Dark Knight" director Christopher Nolan has described his filmmaking process as "some combination of intuition and geometry".

Director-Christopher-Nolan-arrives-for-the-European-premiere-of-Interstellar-in-Leicester-Square-in-London-Reuters

He opened up about it in one of the Tribeca Talks series of public conversations at the 2015 Tribeca Film Festival.

"I don't write a story outline," Nolan told a packed house of festival-goers during the discussion with fellow director Bennett Miller, reports variety.com.

"Usually my answer right off the bat is that I work intuitively, but I draw a lot of diagrams when I work. I do a lot of thinking about etchings by Escher, for instance.

"That frees me, finding a mathematical model or a scientific model. I'll draw pictures and diagrams that illustrate the movement or the rhythm than I'm after," he said.

Nolan added that he always begins a film in an effort to find answers to interesting questions.

"It's only as I get into it that I realise they were questions hanging over from the last film," he said.

Nolan has directed highly acclaimed films like Inception, The Dark Knight trilogy and Interstellar.