Cannes Film Festival 2012: See the Biggest Star Arrivals From Eva Longoria, Jessica Chastain & More! (PHOTOS)

Vive la France!

On Wednesday, the biggest and most glamorous film festival of them all, Cannes, kicked off in fittingly star-studded fashion.

Among the arrivals on hand for the opening ceremony: Eva Longoria, who wore a stunning gown with a super-long train; Jessica Chastain, who wore a white Alexander McQueen dress with a plunging neckline; and the always-eccentric Tilda Swinton, who lived up to her Oscar-winning title in a wrapped gold dress.

Celebuzz will be keeping you updated on all of the news — and, more importantly, the fashions — as the 65th annual Festival de Cannes gets underway. (If that wasn’t a big enough tease: Robert Pattinson and Kristen Stewart are both expected to attend the festival, so you’re going to want to mark your calendars.)

Have a look at the latest fashions in our gallery, then tell us: Who made the best first impression on today’s red carpet?