Silver lady! Rosie Huntington-Whiteley shimmers in sexy sparkling backless gown at Transformers 3 German premiere

By Jody Thompson

Last updated at 8:16 AM on 26th June 2011

She's been voted sexiest woman in the world time and time again - and Rosie Huntington Whiteley showed just why today in a sparkling silver gown that oozed old school Hollywood glamour.

The statuesque blonde star had turned on the style in the stunning floorlength backless frock at the European premiere of Transformers 3: Dark Of The Moon in Berlin today.

The 24-year-old supermodel-turned-actress had accessorised with a simple pair of diamond stud earrings and a sideswept, gently-waved hairdo to keep the look timelessly classy.

Scroll down to see Rosie in the trailer for Transformers 3: Dark Of The Moon...

Glittering glamour: Rosie Huntington-Whiteley looked sensational in a floorlength silver gown at the German premiere of Transformers 3: Dark Side Of The Moon in Berlin today

Stunning: The sparkling backless frock showed off Rosie's astonishing figure

On the red carpet: The model-turned-actress took time out to sign dozens of autographs for fans who'd waited to hours to meet her

She was joined on the red carpet at the bash by co-stars Shia LaBeouf, John Malkovich, Patrick Dempsey, Josh Duhamel and Tyrese Gibson, as well as director Michael Bay.

The cast are all hard at work on the promotional trail ahead of the cinematic release of the new movie, which sees Rosie's silver screen debut.

Earlier this week, Rosie was working it at the Moscow International Film Festival in Russia in a stunning Gucci frock with a see-through skirt, as well as a thigh-slashed hot pink maxi dress.

Blooming lovely: The star was given a gorgeous bouquet of flowers as she walked into the Cinestar movie theatre in Berlin's Potsdam Squarefor the premiere

Dazzling: The Victoria's Secret star is certainly going to at least look good on the big screen in her movie debut

All smiles: Rosie, here laughing with Shia La Beouf, seems to be relishing her time on the red carpet

In good company: Rosie with her co-stars (l-r) Patrick Dempsey, John Malkovich, director Michael Bay, Shia LaBeouf, Josh Duhamel and Tyrese Gibson

And in Rio De Janeiro, Brazil, she wore another black outfit with a seethrough skirt as she cannily uses her often revealing wardrobe to help get the film maximum exposure.

Victoria's Secret model Rosie has also revealed that she thought she had blown it when she auditioned for the movie.

Although her acting abilities have already been roundly praised by the likes of Shia and Tyrese Gibson, Rosie said she had known nothing of the role when first approached about it.

She said: 'I went in a bit blind and also, it was my first-ever audition. I went in completely not knowing what I was doing. I left feeling not confident.'

Breathtaking: The star says that even if she makes a success of her acting career she won't turn her back on modelling

Red carpet style: Rosie has been ramping up the glamour as she promotes the movie in Moscow (left and centre) and Rio De Janeiro (right)

Red carpet style: Rosie has been ramping up the glamour as she promotes the movie in Moscow (left and centre) and Rio De Janeiro (right)

However, the beauty, who dates Hollywood-based British action movie hero Jason Statham, said she didn't have to wait too long on tenterhooks to found out how she'd done.

She revealed director Bay let her know just two days afterwards: 'He was like, "Yeah, you're the girl!"'

However, she said she still didn't know if she'd continue with an acting career for definite.

She explained: 'I'm working toward that, although I very much hope to stay in the fashion industry; it's my first love. We'll see what happens. I've got no idea.'

Transformers: Dark of the Moon opens in the UK on 29 June.