One Hot Mama: Scarlett Johansson’s Sexiest Red-Carpet Looks

(Reuters)

Arriving for the BAFTA (British Academy of Film and Television Arts) awards in London. (Reuters)

Posing at the premiere of her Dreamworks movie "The Island" in New York. (Reuters)

Posing for photographers at Selfridges department store in London. (Reuters)

Attending the 83rd annual Academy Awards in Hollywood. (Reuters)

Posing by her star after it was unveiled on the Walk of Fame in Hollywood. (Reuters)

Attending the Tony Awards in New York. (Reuters)

Promoting "Under the Skin" in Venice. (Reuters)

Posing during a photocall for the movie "Under the Skin" in Venice. (Reuters)

Attending the 70th Venice Film Festival. (Reuters)

Posing at the 38th Toronto International Film Festival. (Reuters)

Attending a screening of "Don Jon" in Toronto. (Reuters)

Promoting "Her" with Spike Jonze, Rooney Mara, and Joaquin Phoenix at the Rome Film Festival. (Reuters)

Smiling at the Los Angeles premiere of "Match Point." (Reuters)

Attending the 39th French Cesar Awards Ceremony in Paris. (Associated Press)

Arriving at the 63rd Annual Golden Globe Awards in Beverly Hills. (Reuters)

Arriving at the Cinema Palace in Venice. (Reuters)

Arriving at the 49th Annual Grammy Awards in Los Angeles. (Reuters)

Posing for photographers in London. (Reuters)

Attending the Metropolitan Museum of Art Costume Institute Gala, "Superheroes: Fashion and Fantasy" in New York. (Reuters)

Promoting Woody Allen's film, "Vicky Cristina Barcelona," in Los Angeles. (Reuters)

Smiling at the premiere of "He's Just Not That Into You" at the Grauman's Chinese Theatre in Hollywood. (Reuters)