The first day of the Cannes Film Festival got underway on Wednesday (May 16, 2012), with Twitter users frantically debating as to who took the prize of best dressed. Most fashion critics heaped praise on festival judge Diane Kruger, though former 'Desperate Housewives' star Eva Longoria also won her fair share of compliments.

Kruger - best known for her role in 'Inglorious Basterds' - donned a burgundy Versus cocktail dress with a pleated skirt and black cord lace straps. She paired the gown with Jimmy Choo's 'Katima' sandals. Vogue UK led the praise for Kruger, though focused on the actress' sleek hairstyle, saying, "We love Diane Kruger's immaculate Cannes 2012 up-do", while user Lara Lain tweeted, "Diane Kruger Stole The Show At The 65th Cannes Film Festival, 2012". It appears Kruger's nearest rival was actress Longoria, who donned a stunning Marchesa 'mermaid' gown for the premiere of Wes Anderson's new movie 'Moonrise Kingdom', which itself received rave reviews from critics. Look magazine said the Desperate Housewives was the undisputed best dressed, while Twitter user Carrie Russell said, "Eva Longoria in Marchesa looks incredible. Absolutely love this dress".

Kruger has a huge decision to make at the end of this year's festival. She had her fellow judges including Ewan McGregor and Tim Roth will select which movie scoops the coveted Palme d'Or, with the likes of 'On the Road', Cosmopolis' and the aforementioned 'Moonrise Kingdom' all in with a chance.