The opening ceremony of the 2012 Cannes Film Festival in the French Riviera was surely a sight to see. Pristine weather and beautiful celebrities helped to make the moment one to remember, as Cannes celebrates its 65th year. Actresses Diane Kruger, who is a jury member at this year's festival, and Eva Longoria looked absolutely stunning with long flowing trains. 

Diane Kruger donned a custom aqua silk draped Giambattista Valli Haute Couture dress. She looked sophisticated and glamorous with her hair pulled back in a sleek bun.

Eva Longoria opted for a more voluminous number -- an embellished, blush Marchesa gown with a flared ruffle skirt. A silk screen covered the chest of her V-neck body-hugging gown. This is the biggest red carpet in the world! U like the dress??#CannesLoreal, Longoria tweeted to her fans. Longoria and actress Freida Pinto are L'Oreal Paris brand ambassadors for the 2012 Cannes Film Festival. Both must match L'Oreal cosmetics with their red carpet gowns. 

Jane Fonda looked super sexy in a slinky bronze Atelier Versace dress. At 74-years-old, she looked better than some half her age! She is in France showing off her age-defying body and promoting Peace, Love and Misunderstanding. Fonda, a vocal liberal, is also set to appear in the movie The Butler, as Nancy Reagan. 

Everybody thinks I am going to be disrespectful. I'm not. She was a powerful first lady and wonderful wife to Ronald Reagan. I'm going to play it fair and square, she told celebrity writer Liz Smith in a recent interview

Jessica Chastain chose subtler attire -- a white Alexander McQueen gown with Louis Vuitton jewelry. Alec Bladwin's finacee Hilaria Thomas also kept it simple with a black silk gown and bold crimson lips. 

Opening day of the festival also acted as the premiere of Wes Anderson's latest film, Moonrise Kingdom, starring Ed Norton, Bruce Willis, Bill Murray, Tilda Swinton and Frances McDormand.

Sometimes when you work with a director you know you not only may never see them again, sometimes you hope you never see them again, Murray said of Anderson at Cannes. And that goes for the director as well. They can't wait for you to leave; they drive you to the airport to make sure you leave. That happens. But with Wes I've never gotten a ride to the airport, and I like it.  

Check out photos from the red carpet on day one of the 2012 Cannes Film Festival.