Stunning Scarlett Johansson sets pulses racing in a low-cut gown

Scarlett Johansson turned heads in a low-cut black dress during an appearance on a US chatshow.

The stunning actress showed off her impressive cleavage as she spoke about her latest movie Vicky Cristina Barcelona on the Jay Leno show.

Scarlett shares a kiss with co-star Penelope Cruz in the Woody Allen film but she recently admitted that it was the 'least sexy thing you can imagine'.

Looking good: The actress turned heads in a low-cut black dress as she chatted to host Jay Leno

The 23-year-old added that she found the media attention surrounding the scene baffling.

‘These characters are in love with each other! Oh my gosh! People are so conservative!’ she told US Magazine.

The star announced her engagement to Canadian actor Ryan Reynolds earlier this year but she claims she won’t be rushing down the aisle
.

Dressed to impress: Scarlett shares a kiss with co-star Penelope Cruz in her latest movie

We're just enjoying our time. We're just recently - very recently - engaged. So… we're just taking it easy. And no big plan yet,’ she said.

‘I mean, I'm 23. There's no reason to rush into it. Everything feels very natural and relaxed.’