From charming her co-stars in He's Just Not That Into You to battling baddies in her latest film, Iron Man 2, 24-year-old Scarlett Johansson never fails to leave a lasting impression both on and off the screen. Never straying far from her signature '40s siren style, Scarlett has confessed to a love of make-up, vivid colours and home-spa pampering sessions. Read on to check out which beauty products this A-lister relies on to keep her looking glamorous and flawless round the clock...