Scarlett Johansson made the transition from modern star to classic Hollywood siren, yesterday afternoon.

The blonde bombshell took her look one step further as she slipped into character on the set of new movie Hitchcock.

The 27-year-old was spotted dressed in costume as actress Janet Leigh, as she headed across the movie lot to start a day of filming.

Quick change: Scarlett Johansson gets into costume as Janet Leigh on the set of Hitchcock

Scarlett tried her best to keep a low profile as she shielded herself from the sun with a huge black umbrella.

The movie star was led from her trailer by a crew member as she shimmied across set passing through make-up and wardrobe.

Scarlett was dressed in a cream pencil skirt which she wore with matching heels and a yellow and black sleeveless blouse.

Make way: The Hollywood star carried a huge umbrella to protect herself from the sun

The woman behind the screen: Janet as she was in 1960 posing in a swimsuit

Although her head was mostly covered by the large umbrella, the star’s short curly blonde wig could just about be seen.

Johansson will play the role of screen legend Janet Leigh who starred in Hitchcock’s Oscar nominated Psycho.

Scarlett wasn’t the only actress seen on set today – Jessica Biel, 30, was also seen getting into character.

Old school: Scarlett was wearing a short blonde curly wig with her cream and yellow ensemble

Iconic film: Hitchcock will tell the tale of the director and his wife around the time he made his famous film Psycho in 1960, Janet Leigh, pictured will be played by Scarlett

Walk the line: The modern day star was transformed into a silver screen siren

Even in a less than flattering wig Biel was still able to look effortlessly beautiful.

The actor was spotted on set leaving the make-up department partly in character as Vera Miles.

The Total Recall star was on the set of the big budget biopic with one of her dogs, but wasn’t fully changed.

Keeping cool: The actor stayed hidden beneath her huge umbrella