You know when you put something on and immediately feel like a star, ready to step out into the world and show off your ensemble? That's probably how Blake Lively [1] felt at Cannes [2] the moment she slipped into an elegant blue Atelier Versace gown for the BFG premiere. Aside from the design hugging her baby bump and giving off Cinderella vibes [3], it also featured a long train that Blake couldn't help but play with as she posed for photographers.

Between letting the extra material blow in the breeze, putting her hand on her hip, and making sure to nail all those back shots, Blake gave us a quick lesson in how to really werk a fancy dress. Scroll on to see the star's look from every angle, then check out how she's been ruling the red carpet all week long [4].

Blake Lively Let Her Leg Peek Out of Her Blue Cannes Gown

It Highlighted All Her Curves — Including Her Baby Bump!

Blake Looked Flawless For Close-Ups of Her Drop Earrings

And Made Sure to Show Off Her Train

She Posed With Her Hand on Her Hip

She Gave a Thumbs Up, Which Drew Attention to Her Rings and Bracelet

She Let Her Gown Trail Behind Her

And in Front of Her, Too

Blake Made Sure to Stop on the Stairs For a Back Shot

And Another!