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I love Griffith on a very personal level, director Damien Chazelle says.

Griffith sits atop a hill as if its in its own world.

GALLERY: La La Land influences: GettyImages-72371116.jpg People visit the Griffith Observatory, 02 November 2006 in Los Angeles.

Gabriel Bouys/AFP/Getty Images

That speaks to the sprawl and the spirit of Los Angeles.

Its totally, authentically, ironically its own thing.

L.A. traffic freaked me out before I even visited L.A., he says.

GALLERY: La La Land influences: GettyImages-93495969.jpg David Hockney views some of his work during a tour of the new Nottingham Contemporary art space which is holding a major retrospective of his work on November 30, 2009 in Nottingham, England

Christopher Furlong/Getty Images

The joyous outcome, involving dozens of vehicles and a hundred dancers, is road-rage relief.

So he hired Quentin Tarantinos favored production designer David Wasco.

It was an extraordinary challenge, but we tried to do the same thing from a different angle.

GALLERY: La La Land influences: GettyImages-481496318.jpg Traffic moves slowly on the 405 Freeway in this aerial photograph taken over the Westwood neighborhood of Los Angeles, California, U.S., on Friday, July 10, 2015

Patrick T. Fallon/Bloomberg via Getty Images

Demys poetic, glittery style was the single biggest influence onLa La Land.

(He filmed at 48 locations in 42 days.)

Right away I wrote a reference toCasablancainto the script, he says.

Pulp Fiction (1994)

Miramax Films/Courtesy Everett Collection

Im a big believer in things as small as what your rig’s screen saver is.

Just look at Cary Grant and Deborah Kerr and those blues and reds and yellows, the director gushes.

This really reminded me of what I wantedLa La Landto feel like.

GALLERY: La La Land influences: Los Angeles Stories by Ry Cooder

It was a major influence on the opening dance number, set on a traffic-clogged freeway.

“And I never wanted to set foot in it.

But instead of Michael Douglas storming out of his car, its a dance number.”

GALLERY: La La Land influences: THE UMBRELLAS OF CHERBOURG, (aka LES PARAPLUIES DE CHERBOURG), Nino Castelnuovo, Catherine Deneuve, 1964

Courtesy Everett Collection

“It’s been more of less shut down except for specific events.

I remember scouting it and you go inside this absolutely gorgeous building, on the outside and inside.

It was strange and beautiful.”

GALLERY: La La Land influences: CASABLANCA, from left: Ingrid Bergman, Humphrey Bogart, 1942

Courtesy Everett Collection

“I absolutely love that documentary,” he says.

It doesnt have a specific place in film the way that New York or Paris does.

Which is why everyone has their own idea of L.A., and many are not the most pleasant.

GALLERY: La La Land influences: An Affair to Remember (1957) Cary Grant and Deborah Kerr

“Certainly aware of it,” he says.

He adds, “That triggers the old movie buff in me.

But theyre also, both together and apart, very contemporary actors.

GALLERY: La La Land influences: FALLING DOWN, Michael Douglas, 1993

Warner Bros/Courtesy Everett Collection

Their style of acting is not what you would find in those old Hollywood movies.

Its more modern and behavioral and grounded.

GALLERY: La La Land influences: GettyImages-162890398.jpg American jazz musician Chet Baker (1929 - 1988) as he plays trumpet, New York, New York, 1957

Susan Wood/Getty Images

GALLERY: La La Land influences: GettyImages-567403197.jpg The Rialto Theatre was designed by Lewis A. Smith, who designed dozens of Southern California movie palaces, including the Vista Theatre in Silver Lake

Irfan Khan/Los Angeles Times via Getty Images

GALLERY: La La Land influences: GettyImages-102219956.jpg A visitor takes a picture of the painting “Dance” by Henri Matisse at the State Hermitage museum on June 19, 2010 in St. Petersburg, Russia

Sean Gallup/Getty Images

GALLERY: La La Land influences: LOS ANGELES PLAYS ITSELF, filming of a scene for SWORDFISH in Los Angeles, 2003

Courtesy Everett Collection

GALLERY: La La Land influences: The Jacques Demy Boxset – Criterion Collection

Criterion Collection

GALLERY: La La Land influences: Gangster Squad (2012) Emma Stone, Ryan Gosling; Crazy, Stupid, Love (2011) Hannah (EMMA STONE) and Jacob (RYAN GOSLING)

Wilson Webb; Ben Glass