Battle of blonde: Jennifer Lawrence vs Amber Heard

Amber Heard, 29, attended the premiere of The Adderall Diaries in Hollywood. (AFP/Getty)

The wife of actor Johnny Depp stood out from the crowd in a red satin gown. (AFP/Getty)

James Franco, Amber Heard, writer/director Pamela Romanowsky and Wilmer Valderama. (AFP/Getty)

(Getty Images)

Jennifer Lawrence and Chris Pratt, cast members in the upcoming film "Passengers," talk backstage during the Sony Pictures Entertainment presentation at CinemaCon 2016, the official convention of the National Association of Theatre Owners (NATO), at Caesars Palace. (AP)

The blonde beauty posed alongside her Passengers co-star Chris Pratt, 36. (AP)

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