Between promoting Iron Man 3 and her new cookbook, Gwyneth Paltrow  has had many opportunities to deliver some fierce red carpet looks. And at the film's LA premiere last night, her colorblocked Antonio Berardi  gown — complete with supersexy sheer panels — did not disappoint. Let's just say, these risqué insets put thigh-high slits to shame! Watch on for all the style scoop. On Allison McNamara: Rebecca Taylor  top, Zara  vest, Jane Basch necklace.