The Deauville American Film Festival started this weekend, and the first major star to walk the red carpet was Rachel McAdams.

Rachel wore a Stella McCartney Resort 2010 dress, which has been shortened from the gown version presented.

Rachel could have worked either look on the runway and still looked fabulous.

Her cute short sassy look was paired with black peep-toes and a bold pink lip colour on the windy evening.

A lot of people seem to think that Rachel is wearing the same jacket Rumer Willis wore just last week.

I disagree. Rumer is actually wearing a jacket to Rachel’s dress.

Rumer’s jacket has a deep plunge and padded shoulders, to Rachel’s dress with an nude illusion panel on the front.

The only similarities for me is the lace, long sleeves and the designer.

I love premiere look, but I wasn’t so crazy about the other Stella McCartney Resort 2010 blue striped dress Rachel wore to the photocall.

The dress needed the belt or any belt to give it some shape, plus I would’ve preferred a daintier heel.

You many remember Diane Kruger wore the a tulip skirt in this same striped blue material recently.

Credit: Fame Pictures, Style.com & Wireimage