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Celebrity makeup artist Melanie Ingelssis shares how she created Olivia Wilde's show-stopping eye for the world premiere of "Cowboys & Aliens":

"To off-set Olivia’s romantic gown and simple hair, we decided the focus of the beauty look would be on the eyes. Using Chanel products, I created a strong smoky eye balanced by soft, luminous skin.

I began by prepping Olivia’s skin with Sublimage Regenerating Fluid to give her complexion a radiant glow. I followed with Mat Lumière Makeup SPF 15. I then highlighted Olivia’s face with Sheer Illuminating Fluid.

To enhance Olivia’s gorgeous baby blues, I began by using Intense Eye Pencil to create the shape of the smoky eye, but kept it true to Olivia’s shape as opposed to taking it out too much. I then rimmed her entire eyes, including the inside of the waterline with a thick line, also using the soft, easy-to-use kohl pencil. I then used Illusion D’Ombre Eyeshadow in Mirifique, a new long-wearing, shimmering cream eyeshadow from the brand, all over Olivia’s lids to create a black base. I took the cream shadow up to the crease of Olivia’s eyes and underneath, blending it with the kohl pencil so there were no harsh lines. With a black shadow, I redefined the outer and inner areas of the eyes that needed to be darker, creating a sexy and smudgy look.

The trick to a beautiful smoky eye is blending, so I took a clean blending brush – with no color on it – and with one motion, I blended the upper and lower colors together.

To complete the look, I curled Olivia’s lashes and added two coats of Inimitable Intense Mascara."