Scarlett Johansson Sewn Into Her Dress

Scarlett also revealed despite her current ash blonde hair, she hasn't ruled out experimenting with the colour again in the future.

The 24-year-old actress admits she was desperate to show off her svelte figure in a skintight floor-length, peach Roland Mouret gown but was stunned when the outfit burst at the seams because it was too tight.

She said: "I wanted this Roland Mouret dress I wore to the 2005 Golden Globes to be really tight. But when I sat down in the car, I just heard, 'Zzzz!' And the back of my dress split! I had to be sewn back in!"

Scarlett - who is married to actor Ryan Reynolds - also revealed despite her current ash blonde hair, she hasn't ruled out experimenting with the colour again in the future.

She added to Britain's Glamour magazine: "I loved the white hair colour I had in 2007. And I loved it with the dark brow. Would I go back to it? Not anytime soon. It's hard on your hair. I just wanted it as white as I possibly could, like cream."