Emma Stone's dress and 1949 Jaguar from Gangster Squad on display...

2013's forthcoming Gangster Squad movie chronicles the efforts of LAPD Detectives to keep the East Coast Mafia out of Los Angeles in the 1940's and 1950's, inspired by the book by Paul Lieberman.

Original costume and cars from Gangster Squad

on display at the Petersen Automotive Museum

To help publicise the period crime film the Petersen Automotive Museum in L.A. currently has a fantastic exhibit featuring costumes, props and picture cars from the movie on display until January 20, 2013.

Gangster Squad movie poster

This gorgeous coral silk and chiffon gown was designed by Mary Zophres and worn by Emma Stone as 'Grace Faraday', the spoiled mistress of Sean Penn's Mafia gangster 'Mickey Cohen'.

You can also see more of the Costume Designer's movie costumes in 2010's True Grit.

Original dress worn by Emma Stone as Grace Faraday in Gangster Squad

If you're a fan of the versatile actress, be sure to also check out Emma Stone's costumes from The Help.

This 1949 XK-120 Jaguar was driven by Emma Stone in the movie and was considered exotic in its day, making it an instant A-List Hollywood favourite. In fact the first car produced was sold to Clark Cable. The '120' in the car's model designation refers to its top speed of 120 miles per hour, which made the Jaguar the fastest regular production car at the time.

Emma Stone's 1949 Jaguar and dress from Gangster Squad

If you like this classic movie car and dress, be sure to stick around in the days to come for even more original costumes, props and cars from Gangster Squad on display.

Gangster Squad movie poster

Costumes worn by Ryan Gosling and Josh Brolin in Gangster Squad on display...

If you're a fan of classic cars and period gangster movies then you'll love this movie exhibit for the forthcoming film Gangster Squad currently on display at the Petersen Automotive Museum in Los Angeles.

Original Gangster Squad movie costumes and police car

These actual costumes worn by Ryan Gosling and Josh Brolin, plus the 1950 Ford Custom Sedan used as a Burbank PD squad car in the movie, were photographed on display on December 15, 2012.

Gangster Squad movie poster

These costumes used to evoke 1940's and 50's L.A. were designed by Mary Zophres.

The wool suits were worn by Ryan Gosling as 'Sgt. Jerry Wooters' and Josh Brolin as 'Sgt. John O'Mara' were designed to look less expensive and flashy than Sean Penn's Mickey Cohen gangster costume, as both actors played LAPD law enforcement officers on modest salaries.

Costumes worn by Ryan Gosling and Josh Brolin in Gangster Squad

In the film the two handsome actors play LAPD Detectives who are tasked with stopping the invasion of East Coast Mafia types using methods outside the scope of usual police authority.

Gangster Squad movie poster

Also on display with the period outfits were these props used by the actors, including LAPD police badges, sunglasses and even cigarettes from the era.

Gangster Squad movie props on display

Sean Penn's Mickey Cohen costume from Gangster Squad on display...

To help promote the forthcoming 2013 Gangster Squad movie the Petersen Automotive Museum in L.A. has a fantastic movie exhibit featuring original cars, costumes and props from the film currently on display, including Sean Penn's mob boss outfit.

Gangster Squad movie exhibit at the Petersen Automotive Museum

Gangster Squad is set in 1940's and 1950's L.A. when LAPD Detectives are trying to protect the City of Angels from an invasion of East Coast Mafia types led by Senn Penn's 'Mickey Cohen'.

Gangster Squad movie poster

Mary Zophres is the Costume Designer on this movie and responsible in part for establishing the feel and mood of the period crime drama, including choosing appropriate attire for Sean Penn to wear as a successful, high-profile underworld figure in 1940's Los Angeles. His Mickey Cohen outfit consists of a tailored overcoat, a conventional, yet expensive wool suit and some flashy two-tone wing-tip shoes.

Original costume worn by Sean Penn 

as Mickey Cohen in Gangster Squad

Sean Penn's costume is pictured alongside a 1950 Ford Custom Sedan which is used as a Burbank Police Department squad car in a pivotal chase scene in the movie.

If you're a fan of the actor, be sure to also check out these original costumes worn by Sean Penn in Milk, for which he won an Oscar for his leading role portrayal of assassinated gay activist 'Harvey Milk'.

Actual props used in Gangster Squad

Also on display at the Petersen Auto Museum were original props used in the movie, like these printed newspapers and Mickey Cohen's red stone ring.

Plus be sure to stick around for even more movie costumes and props from Gangster Squad in the days to come.

Gangster Squad movie poster