Amanda Seyfried will be steaming up the screen this Friday, starring alongside Justin Timberlake in the action thriller flick In Time. But while most actresses have to sweat their fannies off to get in shape for such a sultry and sexy role, the bombshell blonde didn’t have much work to do – and Shape magazine knows her secret.

Seyfried has been working with celebrity trainer Harley Pasternak for the last few years and follows his famous 5-Factor Program to stay in stellar shape.

“She works out really hard and looks phenomenal. She knows what it takes and doesn’t need to spend a whole lot of time in the gym,” Pasternak says.

Amanda Seyfried hit the red carpet premiere of In Time last week, looking smoky eyed and stunning. The Cle de Peau Beaute spokesperson turned to makeup artist Monika Blunder to create a sultry look using Cle de Peau products to compliment her powerfully purple Prabal Gurung frock ­ and RadarOnline.com has scored the details from the makeup artist on how to recreate her look!

First, Blunder prepped Amanda's skin with Silky Cream Foundation SPF 23 ($120), which gave her face a flawless, yet natural looking base.

To get a fabulous and sexy smoky eye look, the makeup artist applied the new Limited Edition Cream Eye Color ($45) in Moon Light and Night Brown.  She used the darker grey shade on the outer corners of Amanda¹s eyes for depth and the sparkly cream shade on the inner corners to brighten up her eyes.